Counterbores

When it comes to creating perfectly countersunk holes in your woodworking projects, counterbores are an essential tool to have in your arsenal. These versatile tools are designed to drill a pilot hole for the screw and then create a larger, flat-bottomed hole to accommodate the screw head. This ensures that the screw sits flush with the surface, giving your project a professional and polished finish. Counterbores come in a variety of sizes to suit different screw sizes and can be used with a drill press or a hand drill. They are typically made from high-speed steel or carbide for durability and precision. Whether you're working on a simple DIY project or a more complex woodworking endeavor, having a quality counterbore in your toolbox will make the job faster and easier. Investing in a high-quality counterbore will not only save you time and effort, but it will also ensure that your projects look professional and well-crafted. So why not add a counterbore to your collection of woodworking tools today? Browse our selection and find the perfect counterbore for your needs.
1 3/8 ECLIPSE 401-4003 TWIST LOCK RADIAL DRIVER FOR COUNTERBORES MORSE TAPER #3
1 3/8 ECLIPSE 401-4003 TWIST LOCK RADIAL DRIVER FOR COUNTERBORES MORSE TAPER #3 Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

NEW Putnam TRW CS-44-60 11/16'' x 1'' Counterbore Pilot Cutter
NEW Putnam TRW CS-44-60 11/16'' x 1'' Counterbore Pilot Cutter Ebay.com starting at $26.99

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VB Industrial Supply

Rating: 99.9%

TMX (5-620-405) 7/8" x 5/16" Pilot for Interchangeable Counterbore
TMX (5-620-405) 7/8" x 5/16" Pilot for Interchangeable Counterbore Ebay.com starting at $24.95

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Twin City Tools

Rating: 99.6%

35/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00035
35/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00035 Ebay.com starting at $33.69

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wallymachinery

Rating: 99.4%

29/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00029
29/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00029 Ebay.com starting at $9.80

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wallymachinery

Rating: 99.4%

27/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00027-2
27/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00027-2 Ebay.com starting at $9.80

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wallymachinery

Rating: 99.4%

21/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00021
21/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00021 Ebay.com starting at $9.22

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wallymachinery

Rating: 99.4%

19/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00019
19/64 HIGH SPEED STRAIGHT SHANK COUNTERBORE 144-00019 Ebay.com starting at $9.04

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wallymachinery

Rating: 99.4%

Harvey Tool 25509-C3 9/64'' Carbide Flat Bottom Counterbores
Harvey Tool 25509-C3 9/64'' Carbide Flat Bottom Counterbores Ebay.com starting at $24.99

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VB Industrial Supply

Rating: 99.9%

12.5mm CHANGEABLE PILOT 25mm O.D. HSS COUNTERBORE HEAD 3 FLUTE 8mm ARBOR HOLE
12.5mm CHANGEABLE PILOT 25mm O.D. HSS COUNTERBORE HEAD 3 FLUTE 8mm ARBOR HOLE Ebay.com starting at $29.99

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M and J Tooling

Rating: 99.9%

BILZ HB1503 COUNTERBORE HOLDER MORSE TAPER #3 SHANK MT3 ADAPTER
BILZ HB1503 COUNTERBORE HOLDER MORSE TAPER #3 SHANK MT3 ADAPTER Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

VERMONT ABOUT 1 1/8 BACK COUNTERBORE SPOT FACER 1 1/4 SHANK V18294 Rev A 1.125
VERMONT ABOUT 1 1/8 BACK COUNTERBORE SPOT FACER 1 1/4 SHANK V18294 Rev A 1.125 Ebay.com starting at $74.99

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M and J Tooling

Rating: 99.9%

FENES SOLID PILOT COUNTERBORE SET, HSS, METRIC ASSORTMENT, 8 PCS
FENES SOLID PILOT COUNTERBORE SET, HSS, METRIC ASSORTMENT, 8 PCS Ebay.com starting at $100.00

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7 piece Set of Socket Head Screw Counterbores
7 piece Set of Socket Head Screw Counterbores Ebay.com starting at $35.00

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Black Swan Enterprises

Rating: 100.0%

27/64" INTERCHANGEABLE PILOT 5/8" O.D. HSS COUNTERBORE 1/2" SHANK 3 FLUTE
27/64" INTERCHANGEABLE PILOT 5/8" O.D. HSS COUNTERBORE 1/2" SHANK 3 FLUTE Ebay.com starting at $29.99

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M and J Tooling

Rating: 99.9%

Thorlabs AM45C -  45° Angle Block, #8 Counterbore, 8-32 Post Mount
Thorlabs AM45C - 45° Angle Block, #8 Counterbore, 8-32 Post Mount Ebay.com starting at $15.00

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CLEVELAND 3/16" PILOT 5/16" O.D. HSS COUNTERBORE 19/64" SHANK 3 FL 5/16 HS USA
CLEVELAND 3/16" PILOT 5/16" O.D. HSS COUNTERBORE 19/64" SHANK 3 FL 5/16 HS USA Ebay.com starting at $29.99

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M and J Tooling

Rating: 99.9%

SONNET 11/16" PILOT 1 1/4" O.D. CARBIDE TIP COUNTERBORE 1/2" SHANK 4 FL NAP-8
SONNET 11/16" PILOT 1 1/4" O.D. CARBIDE TIP COUNTERBORE 1/2" SHANK 4 FL NAP-8 Ebay.com starting at $44.99

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M and J Tooling

Rating: 99.9%

LOT OF HSS COUNTERBORES VARIOUS SIZES SOME INTERCHANGEABLE PILOT STRAIGHT SHANK
LOT OF HSS COUNTERBORES VARIOUS SIZES SOME INTERCHANGEABLE PILOT STRAIGHT SHANK Ebay.com starting at $84.99

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M and J Tooling

Rating: 99.9%

1/4 INTERCHANGEABLE PILOT HOLE 13/16 O.D. HSS COUNTERBORE 5/8 SHANK 3 FL 15585
1/4 INTERCHANGEABLE PILOT HOLE 13/16 O.D. HSS COUNTERBORE 5/8 SHANK 3 FL 15585 Ebay.com starting at $29.99

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M and J Tooling

Rating: 99.9%

UNION .31 INTERCHANGEABLE PILOT 1/2 O.D. HSS COUNTERBORE .435 SHANK 3 FLUTE
UNION .31 INTERCHANGEABLE PILOT 1/2 O.D. HSS COUNTERBORE .435 SHANK 3 FLUTE Ebay.com starting at $24.99

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M and J Tooling

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5/16x1/8    COUNTERBORE PILOT N102-2 ITEM NUMBER 440-08020
5/16x1/8 COUNTERBORE PILOT N102-2 ITEM NUMBER 440-08020 Ebay.com starting at $4.98

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wallymachinery

Rating: 99.4%

LOT OF HSS REAMERS & COUNTERBORES SOME TAPERED VARIOUS SIZES MACHINIST TOOLING
LOT OF HSS REAMERS & COUNTERBORES SOME TAPERED VARIOUS SIZES MACHINIST TOOLING Ebay.com starting at $99.99

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M and J Tooling

Rating: 99.9%

ECLIPSE 5/16 PILOT HOLE .99 O.D. HSS COUNTERBORE MORSE TAPER #3 MT3 TWIST LOCK
ECLIPSE 5/16 PILOT HOLE .99 O.D. HSS COUNTERBORE MORSE TAPER #3 MT3 TWIST LOCK Ebay.com starting at $74.99

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M and J Tooling

Rating: 99.9%

M.R. & T CO. 1/2 INTERCHANGEABLE PILOT 3/4 O.D. HSS COUNTERBORE 1/2 SHANK 3 FL
M.R. & T CO. 1/2 INTERCHANGEABLE PILOT 3/4 O.D. HSS COUNTERBORE 1/2 SHANK 3 FL Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

ECLIPSE 1/4 PILOT HOLE 7/8 O.D. CARBIDE TIP COUNTERBORE TWIST LOCK SHANK 4 FL
ECLIPSE 1/4 PILOT HOLE 7/8 O.D. CARBIDE TIP COUNTERBORE TWIST LOCK SHANK 4 FL Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

ECLIPSE 1/4 CHANGEABLE PILOT HOLE 7/8 O.D. HSS COUNTERBORE TWIST LOCK SHANK 4 FL
ECLIPSE 1/4 CHANGEABLE PILOT HOLE 7/8 O.D. HSS COUNTERBORE TWIST LOCK SHANK 4 FL Ebay.com starting at $29.99

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M and J Tooling

Rating: 99.9%

ECLIPSE 5/16 PILOT HOLE 1 1/8 O.D. CARBIDE TIP COUNTERBORE TWIST LOCK SHANK 4 FL
ECLIPSE 5/16 PILOT HOLE 1 1/8 O.D. CARBIDE TIP COUNTERBORE TWIST LOCK SHANK 4 FL Ebay.com starting at $39.99

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M and J Tooling

Rating: 99.9%

1/2 O.D. HSS COUNTERBORE TWIST DRILL BIT MORSE TAPER #1 SHANK 4" LOC .5 MT1
1/2 O.D. HSS COUNTERBORE TWIST DRILL BIT MORSE TAPER #1 SHANK 4" LOC .5 MT1 Ebay.com starting at $19.99

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M and J Tooling

Rating: 99.9%

Lot Of 6 AT Spot facers 4-Flute HSS Spotfacer 1 3/8 1 1/4 1 1/8 1" 15/16
Lot Of 6 AT Spot facers 4-Flute HSS Spotfacer 1 3/8 1 1/4 1 1/8 1" 15/16 Ebay.com starting at $39.99

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Wildwood Dean's Tools and Things

Rating: 100.0%

Lot Of 8 Various Spot facers 4-Flute HSS Spotfacer Up To 1" Item A
Lot Of 8 Various Spot facers 4-Flute HSS Spotfacer Up To 1" Item A Ebay.com starting at $29.99

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Wildwood Dean's Tools and Things

Rating: 100.0%

1/4 Counterbore Pilot 1/8 Shank
1/4 Counterbore Pilot 1/8 Shank Ebay.com starting at $44.68

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Bearing Wholesale Lots

Rating: 98.8%

7/16" X 21/32" HS 503 COUNTERBORE
7/16" X 21/32" HS 503 COUNTERBORE Ebay.com starting at $15.00

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industrialss2015

Rating: 99.6%

Ingersoll #3206165 0.531" dia 3/4" Shank Quad Bore Indexable Counterbore
Ingersoll #3206165 0.531" dia 3/4" Shank Quad Bore Indexable Counterbore Ebay.com starting at $100.45

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Industry Recycles

Rating: 99.4%

1/2" HSS 17/32 x 25/32 COUNTERBORE
1/2" HSS 17/32 x 25/32 COUNTERBORE Ebay.com starting at $19.00

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industrialss2015

Rating: 99.6%

29/32" Interchangeable Pilot Counterbore 5/8" Pilot Whitney Tool Co. USA
29/32" Interchangeable Pilot Counterbore 5/8" Pilot Whitney Tool Co. USA Ebay.com starting at $29.95

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KB Surplus Sales

Rating: 100.0%

.343 x .468 Counterbore Putnam USA
.343 x .468 Counterbore Putnam USA Ebay.com starting at $10.95

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KB Surplus Sales

Rating: 100.0%

5/16" Step Pilot 3/8" Shank HSS USA for Reverse Counterbore / Spotfacers
5/16" Step Pilot 3/8" Shank HSS USA for Reverse Counterbore / Spotfacers Ebay.com starting at $9.95

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KB Surplus Sales

Rating: 100.0%

Yankee 302-0.9449 High Speed Steel Spiral 24mm Capscrew Counterbore Reamer
Yankee 302-0.9449 High Speed Steel Spiral 24mm Capscrew Counterbore Reamer Ebay.com starting at $226.00

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Twin City Tools

Rating: 99.6%

#8 Screw Counterbore, USA 1/4" Shank
#8 Screw Counterbore, USA 1/4" Shank Ebay.com starting at $17.99

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KB Surplus Sales

Rating: 100.0%

Cleveland 21/32" Int. Pilot Counterbore,#2MT Shank, 3/16" Pilot Hole
Cleveland 21/32" Int. Pilot Counterbore,#2MT Shank, 3/16" Pilot Hole Ebay.com starting at $13.99

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KB Surplus Sales

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COUNTERBORE M12  14X20
COUNTERBORE M12 14X20 Ebay.com starting at $16.95

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machiner4retire

Rating: 100.0%

3/4" Screw Counterbore, 2mt Shank, Weldon LGT-24
3/4" Screw Counterbore, 2mt Shank, Weldon LGT-24 Ebay.com starting at $37.95

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KB Surplus Sales

Rating: 100.0%

2 Pcs Set of 3" Metcut Kennametal Counterbore 7.5mm EI MCT 100-3300
2 Pcs Set of 3" Metcut Kennametal Counterbore 7.5mm EI MCT 100-3300 Ebay.com starting at $35.00

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MyCyberOffice

Rating: 100.0%

13/16" HSS 4-Flute Counterbore, 1/2” Pilot 10” OAL, #3 Morse Taper
13/16" HSS 4-Flute Counterbore, 1/2” Pilot 10” OAL, #3 Morse Taper Ebay.com starting at $20.00

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saws2u

Rating: 100.0%

1 1/16” HSS 4-Flute Counterbore, .650 Pilot 7 3/4” OAL, #3 Morse Taper
1 1/16” HSS 4-Flute Counterbore, .650 Pilot 7 3/4” OAL, #3 Morse Taper Ebay.com starting at $15.00

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saws2u

Rating: 100.0%

TMX (5-620-075) 5/16" x 5/32" Pilot for Interchangeable Counterbore
TMX (5-620-075) 5/16" x 5/32" Pilot for Interchangeable Counterbore Ebay.com starting at $14.95

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Twin City Tools

Rating: 99.6%

Greenfield Putnam (91831) 9mm x 15mm x 1/2" HSS Taper Shank Pilot Counterbore
Greenfield Putnam (91831) 9mm x 15mm x 1/2" HSS Taper Shank Pilot Counterbore Ebay.com starting at $34.95

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Twin City Tools

Rating: 99.6%

INGERSOLL CUTTING TOOLS 4.5 IN DIA CENTER CUTTING COUNTERBORE (ITEM #2386)
INGERSOLL CUTTING TOOLS 4.5 IN DIA CENTER CUTTING COUNTERBORE (ITEM #2386) Ebay.com starting at $299.95

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3rdSource

Rating: 100.0%

9PC LOT OF HSS STRAIGHT SHANK COUNTERBORES BRIDGEPORT MILLING MACHINIST TOOLING
9PC LOT OF HSS STRAIGHT SHANK COUNTERBORES BRIDGEPORT MILLING MACHINIST TOOLING Ebay.com starting at $54.99

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M and J Tooling

Rating: 99.9%

ECLIPSE MT#2 SHANK COUNTERBORE HOLDER W/ 1 1/8 O.D. HEAD 3/4 PIOLT MT2 1.125 .75
ECLIPSE MT#2 SHANK COUNTERBORE HOLDER W/ 1 1/8 O.D. HEAD 3/4 PIOLT MT2 1.125 .75 Ebay.com starting at $39.99

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M and J Tooling

Rating: 99.9%

7 PCS COGSDILL/GAIRING HSS COUNTERBORES MT#2 & #3 SIZES FROM 5/8 UP TO 1"
7 PCS COGSDILL/GAIRING HSS COUNTERBORES MT#2 & #3 SIZES FROM 5/8 UP TO 1" Ebay.com starting at $59.99

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M and J Tooling

Rating: 99.9%

APT COUNTERBORE 5/16" PILOT ABOUT .507" DIA 3/8" SHANK HSS .3125 1/32" OVERSIZE
APT COUNTERBORE 5/16" PILOT ABOUT .507" DIA 3/8" SHANK HSS .3125 1/32" OVERSIZE Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

(GH8790297) 29/64 x 7/16 x 3-1/16 x 3-1/16 Interchangeable 3FL Pilot Counterbore
(GH8790297) 29/64 x 7/16 x 3-1/16 x 3-1/16 Interchangeable 3FL Pilot Counterbore Ebay.com starting at $39.95

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Twin City Tools

Rating: 99.6%

Lot Of COUNTERBORES  1)1-1/2”100-2150 M7| 2)1-5/8”100-2162 M7  (J35)
Lot Of COUNTERBORES 1)1-1/2”100-2150 M7| 2)1-5/8”100-2162 M7 (J35) Ebay.com starting at $85.00

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Dependable Tool Surplus

Rating: 99.4%

PAIR OF INDEXABLE COUNTER BORES ADJUSTABLE W/ 3/4 " SHANK + INSERTS
PAIR OF INDEXABLE COUNTER BORES ADJUSTABLE W/ 3/4 " SHANK + INSERTS Ebay.com starting at $225.00

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RandC_Inc 2011

Rating: 100.0%

ECLIPSE 854 QUICK CHANGE COUNTERBORE HOLDER MORSE TAPER #2 MT2 .58" I.D.
ECLIPSE 854 QUICK CHANGE COUNTERBORE HOLDER MORSE TAPER #2 MT2 .58" I.D. Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

METCUT 210-2143 1 7/16 O.D. CARBIDE TIPPED COUNTERBORE 5/16 PILOT HOLE #2 STUB
METCUT 210-2143 1 7/16 O.D. CARBIDE TIPPED COUNTERBORE 5/16 PILOT HOLE #2 STUB Ebay.com starting at $39.99

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M and J Tooling

Rating: 99.9%

WHITNEY 15/16" O.D. COUNTERBORE CBIP0937 3/4 SHANK DIA 1/4 PILOT HOLE I.D. .9375
WHITNEY 15/16" O.D. COUNTERBORE CBIP0937 3/4 SHANK DIA 1/4 PILOT HOLE I.D. .9375 Ebay.com starting at $74.99

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M and J Tooling

Rating: 99.9%

BRIDGEPORT MILL MACHNIST TOOLING LOT DRILLS TAPS REAMERS COUNTERBORES & MORE
BRIDGEPORT MILL MACHNIST TOOLING LOT DRILLS TAPS REAMERS COUNTERBORES & MORE Ebay.com starting at $59.99

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M and J Tooling

Rating: 99.9%

MOHAWK TOOL 331 CARBIDE TIPPED STUB TAPER COUNTERBORE 1 1/4 CUTTING DIA 1.25
MOHAWK TOOL 331 CARBIDE TIPPED STUB TAPER COUNTERBORE 1 1/4 CUTTING DIA 1.25 Ebay.com starting at $39.99

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M and J Tooling

Rating: 99.9%

METCUT 110-2125 #2 STUB TAPER COUNTERBORE 1 1/4 DIA 5/16 PILOT HOLE HSS 1.25
METCUT 110-2125 #2 STUB TAPER COUNTERBORE 1 1/4 DIA 5/16 PILOT HOLE HSS 1.25 Ebay.com starting at $39.99

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M and J Tooling

Rating: 99.9%

SCM .4950 x 1" SOLID CARBIDE COUNTERBORE TWIST DRILL BIT TL-33 3/4 SHANK 3" LOC
SCM .4950 x 1" SOLID CARBIDE COUNTERBORE TWIST DRILL BIT TL-33 3/4 SHANK 3" LOC Ebay.com starting at $59.99

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M and J Tooling

Rating: 99.9%

GAIRING A4 COUNTERBORE HOLDER MORSE TAPER #4 W/ ABOUT 2 1/2 O.D. HEAD 2.5 MT4
GAIRING A4 COUNTERBORE HOLDER MORSE TAPER #4 W/ ABOUT 2 1/2 O.D. HEAD 2.5 MT4 Ebay.com starting at $49.99

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M and J Tooling

Rating: 99.9%

19/32 DIA, 1/2 SHANK DIA, 3 FLUTE HSS NTERCHANGEABLE PILOT COUNTERBORE GH8790388
19/32 DIA, 1/2 SHANK DIA, 3 FLUTE HSS NTERCHANGEABLE PILOT COUNTERBORE GH8790388 Ebay.com starting at $27.97

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(5-620-020) 7/32″ x 3/32″ Carbon Steel Counterbore Pilot - Lot of 9
(5-620-020) 7/32″ x 3/32″ Carbon Steel Counterbore Pilot - Lot of 9 Ebay.com starting at $44.95

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Twin City Tools

Rating: 99.6%

PUTNAM TOOL Counterbore, Counter Bore, .340" Pilot x .438" +/- Cut, # 1 MT Shank
PUTNAM TOOL Counterbore, Counter Bore, .340" Pilot x .438" +/- Cut, # 1 MT Shank Ebay.com starting at $8.97

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Blue Water Area Auctions

Rating: 100.0%

New Harvey Tool Carbide Counterbores Flat Bottom Long Reach 3/16 Dia.x3/4 Flt
New Harvey Tool Carbide Counterbores Flat Bottom Long Reach 3/16 Dia.x3/4 Flt Ebay.com starting at $36.95

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toolsupply12

Rating: 99.2%

Serdi Valve Seat Counterbore Cutter. 1-341MH
Serdi Valve Seat Counterbore Cutter. 1-341MH Ebay.com starting at $100.00

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RT SALES EQUIPMENT

Rating: 100.0%

Serdi Valve Seat Counterbore Cutter. 1.775 size.
Serdi Valve Seat Counterbore Cutter. 1.775 size. Ebay.com starting at $100.00

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RT SALES EQUIPMENT

Rating: 100.0%

7/8″ Diam 4 Fl Straight Shank Interchangeable Pilot Counterbore MIT-435-20
7/8″ Diam 4 Fl Straight Shank Interchangeable Pilot Counterbore MIT-435-20 Ebay.com starting at $44.10

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Industry Recycles

Rating: 99.4%

9/32" DIAM,1/4" SHANK DIAM,4 FLUTES,AIRCRAFT STYLE INTERCHANGEABLE PILOT COUNTER
9/32" DIAM,1/4" SHANK DIAM,4 FLUTES,AIRCRAFT STYLE INTERCHANGEABLE PILOT COUNTER Ebay.com starting at $19.97

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UNION TWIST DRILL 1.44 OD HSS CHANGEABLE PILOT COUNTERBORE .55 SHANK 4 FL NO 9 R
UNION TWIST DRILL 1.44 OD HSS CHANGEABLE PILOT COUNTERBORE .55 SHANK 4 FL NO 9 R Ebay.com starting at $49.99

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M and J Tooling

Rating: 99.9%

INTERCHANGEABLE PILOT X ABOUT 1.7" O.D. HSS COUNTERBORE 3/4" SHANK 5 FLUTE
INTERCHANGEABLE PILOT X ABOUT 1.7" O.D. HSS COUNTERBORE 3/4" SHANK 5 FLUTE Ebay.com starting at $49.99

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M and J Tooling

Rating: 99.9%

BILZ H5 1/2 COUNTERBORE HOLDER ADAPTER MORSE TAPER #3 SHANK MT3 H-5 .5
BILZ H5 1/2 COUNTERBORE HOLDER ADAPTER MORSE TAPER #3 SHANK MT3 H-5 .5 Ebay.com starting at $34.99

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M and J Tooling

Rating: 99.9%

.318 O.D. CHANGEABLE PILOT 5/8 O.D. HSS COUNTERBORE 1/2 SHANK 3 FL 5 1/4 OAL
.318 O.D. CHANGEABLE PILOT 5/8 O.D. HSS COUNTERBORE 1/2 SHANK 3 FL 5 1/4 OAL Ebay.com starting at $24.99

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M and J Tooling

Rating: 99.9%

5PCS ECLIPSE QUICK CHANGE HSS COUNTERBORES SIZES FROM 31/32 - 1 39/64 PIN DRIVE
5PCS ECLIPSE QUICK CHANGE HSS COUNTERBORES SIZES FROM 31/32 - 1 39/64 PIN DRIVE Ebay.com starting at $49.99

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STRONGS 1/2 PILOT 3/4 O.D. HSS COUNTERBORE MORSE TAPER #2 4 FL 702-C-6 MT2
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Eclipse 1-1/16" #410-1003 Counterbore Twist Lock Holder  MT2 Shank  With Cutter
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MT#3 INSIDE TO MT#2 OUTSIDE STUB TAPER COUNTERBORE DRIVER 6 3/8 OAL MT3 MT2
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1.352" Diameter tip Eclipse Twist Lock Counterbore cutter tool PILOT 1/2 1-23/64
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NEW ZIMMER Trochanteric Counterbore 402-11 11mm Diameter 9.5" Long
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