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  1. Home
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  3. Tools & Machining
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  5. Cutting Tools
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 5

Drill America No 2 .085mm Machine Screw Solid Counterbore DEWCBRSOL2
Drill America

No 2 .085mm Machine Screw Solid Counterbore

Zoro # G1744699
Mfr # DEWCBRSOL2
product price:  $9.15
/ea
Link Ua5-1/4 English Shcs HSS Counterbore 60-L2-297
Link

Ua5-1/4 English Shcs HSS Counterbore

Zoro # G7644859
Mfr # 60-L2-297
product price:  $29.29
/ea
Super Tool Counterbore, 1-15/16" D, Carbide Tipped 56427
Super Tool

Counterbore, 1-15/16" D, Carbide Tipped

Zoro # G0330038
Mfr # 56427
product price:  $445.99
/ea
Super Tool Counterbore, 3/4" D, Carbide Tipped 56409
Super Tool

Counterbore, 3/4" D, Carbide Tipped

Zoro # G0330080
Mfr # 56409
product price:  $127.99
/ea
Garant Counterbore with Interchangeable Pilot Pins, 36 mm 156520 36
Garant

Counterbore with Interchangeable Pilot Pins, 36 mm

Zoro # G614389840
Mfr # 156520 36
product price:  $215.99
/ea
Harvey Tool 1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731616-C3
Harvey Tool

1/4 in. Cutter dia. x7/8 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G111325242
Mfr # 731616-C3
product price:  $79.89
/ea
Harvey Tool Counterbores - Flat Bottom, 0.2031" (13/64) 23413-C3
Harvey Tool

Counterbores - Flat Bottom, 0.2031" (13/64)

Zoro # G7153276
Mfr # 23413-C3
product price:  $78.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2031" (13/64), Overall Length: 4" 25513-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2031" (13/64), Overall Length: 4"

Zoro # G7262607
Mfr # 25513-C3
product price:  $114.99
/ea
Super Tool Reduced Shank Counterbore, 1-11/16" D 52254
Super Tool

Reduced Shank Counterbore, 1-11/16" D

Zoro # G0331359
Mfr # 52254
product price:  $240.99
/ea
Link Ua7-12MM Metric Shcs HSS Counterbore 72-L2-516
Link

Ua7-12MM Metric Shcs HSS Counterbore

Zoro # G7643985
Mfr # 72-L2-516
product price:  $51.65
/ea
Kodiak Cutting Tools 7/8 Counterbore On Size Capscrew Style 5495787
Kodiak Cutting Tools

7/8 Counterbore On Size Capscrew Style

Zoro # G8617965
Mfr # 5495787
product price:  $190.99
/ea
Super Tool Counterbore, 1/2" D, Carbide Tipped 59805
Super Tool

Counterbore, 1/2" D, Carbide Tipped

Zoro # G0329977
Mfr # 59805
product price:  $112.99
/ea
Super Tool Reduced Shank Counterbore, 1-5/8" D 52252
Super Tool

Reduced Shank Counterbore, 1-5/8" D

Zoro # G0331383
Mfr # 52252
product price:  $281.18
/ea
Link Ua4-6MM Metric Shcs HSS Counterbore 72-L2-513
Link

Ua4-6MM Metric Shcs HSS Counterbore

Zoro # G7642725
Mfr # 72-L2-513
product price:  $32.75
/ea
Link Ua6-5/16 English Shcs HSS Counterbore 60-L2-298
Link

Ua6-5/16 English Shcs HSS Counterbore

Zoro # G7638787
Mfr # 60-L2-298
product price:  $27.89
/ea
Super Tool Reduced Shank Counterbore, 1-1/16" D 52234
Super Tool

Reduced Shank Counterbore, 1-1/16" D

Zoro # G0331261
Mfr # 52234
product price:  $170.99
/ea
Super Tool Counterbore, 17/32" D, Carbide Tipped 5775312
Super Tool

Counterbore, 17/32" D, Carbide Tipped

Zoro # G0330449
Mfr # 5775312
product price:  $135.99
/ea
Morse Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le 25750
Morse

Cap Screw Counterbore, Straight Shank, Series 1766, 8 mm Screw, 05315 Bore Dia, 612 Overall Le

Zoro # G608029127
Mfr # 25750
product price:  $89.95
/ea
Super Tool Reduced Shank Counterbore, 1-3/8" D 52244
Super Tool

Reduced Shank Counterbore, 1-3/8" D

Zoro # G0331307
Mfr # 52244
product price:  $198.99
/ea
Super Tool Counterbore, 13/32" D, Carbide Tipped 5794062
Super Tool

Counterbore, 13/32" D, Carbide Tipped

Zoro # G0330053
Mfr # 5794062
product price:  $114.99
/ea
Super Tool Counterbore, 1-3/16" D, Carbide Tipped 56416
Super Tool

Counterbore, 1-3/16" D, Carbide Tipped

Zoro # G0329843
Mfr # 56416
product price:  $154.99
/ea
Super Tool Counterbore, 1-3/4" D, Carbide Tipped 56424
Super Tool

Counterbore, 1-3/4" D, Carbide Tipped

Zoro # G0329651
Mfr # 56424
product price:  $294.99
/ea
Super Tool Reduced Shank Counterbore, 11/32" D 52211
Super Tool

Reduced Shank Counterbore, 11/32" D

Zoro # G0331447
Mfr # 52211
product price:  $75.59
/ea
Super Tool Counterbore, 23/32" D, Carbide Tipped 5797188
Super Tool

Counterbore, 23/32" D, Carbide Tipped

Zoro # G0330071
Mfr # 5797188
product price:  $122.99
/ea
Drill America 3/4" 13/16" Continuous Pilot Capscrew Counterbore DEWCSCBR3/4
Drill America

3/4" 13/16" Continuous Pilot Capscrew Counterbore

Zoro # G1745295
Mfr # DEWCSCBR3/4
product price:  $81.79
/ea
Harvey Tool Counterbores - Flat Bottom 23411-C6
Harvey Tool

Counterbores - Flat Bottom

Zoro # G804195398
Mfr # 23411-C6
product price:  $61.49
/ea
Harvey Tool 1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated 23362-C8
Harvey Tool

1/16 Cutter dia. x 1/4 in. Flute Length Carbide Flat Bottom Counterbore, 4 Flutes, TiB2 Coated

Zoro # G711326380
Mfr # 23362-C8
product price:  $58.79
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2362" 2556M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2362"

Zoro # G7164799
Mfr # 2556M
product price:  $106.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.5 mm 156020 8X4,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 8X4.5 mm

Zoro # G114389470
Mfr # 156020 8X4,5
product price:  $19.79
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.9 mm 156020 6,5X3,9
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.9 mm

Zoro # G614389512
Mfr # 156020 6,5X3,9
product price:  $24.55
/ea
Drill America 3/4" X 1/2" Pilots for Counterbore DEWPIL3/4X1/2
Drill America

3/4" X 1/2" Pilots for Counterbore

Zoro # G1741576
Mfr # DEWPIL3/4X1/2
product price:  $11.45
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 10X4.2 mm 156220 10X4,2
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 10X4.2 mm

Zoro # G514375578
Mfr # 156220 10X4,2
product price:  $22.75
/ea
Drill America No 5 .141 Continuous Pilot Capscrew Counterbore DEWCSCBR5
Drill America

No 5 .141 Continuous Pilot Capscrew Counterbore

Zoro # G1739640
Mfr # DEWCSCBR5
product price:  $25.15
/ea
Harvey Tool 0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated 23427-C3
Harvey Tool

0.4220'', 27/64 Cutter DIA x 1.0000'', 1 Flute Length - 4 FL - AlTiN Coated

Zoro # G413081587
Mfr # 23427-C3
product price:  $138.99
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm 156220 6,5X2,9
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 6.5X2.9 mm

Zoro # G814376060
Mfr # 156220 6,5X2,9
product price:  $25.99
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.3 mm 156020 10X5,3
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.3 mm

Zoro # G614389642
Mfr # 156020 10X5,3
product price:  $21.49
/ea
Porting Tools & Counterbores (993 items) - Page 5
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About Porting Tools & Counterbores

Porting Tools & Counterbores are used to improve the flow of air or gas in an engine, turbine, compressor, and more. They are typically used to reduce turbulence in the airflow and increase performance.

Types of Porting Tools & Counterbores

Chainsaw porting tools are commonly used for small engines like lawnmowers, as they can be adjusted easily and quickly. Ported tools are designed for larger engines such as those found in cars and motorcycles. Porting supplies include special cutting tools that allow for precise modifications to be made with minimal effort.

How Porting Tools & Counterbores are Made

Porting tools are usually constructed from hardened steel or aluminum alloy materials that can withstand high temperatures and pressures associated with engine operations. Special compounds may also be applied during the manufacturing process to ensure optimal performance.

Industries that use Porting Tools & Counterbores

Porting Tools & Counterbores can be found in a variety of industries including automotive, aerospace, marine, industrial machinery, and power sports. Professionals such as mechanics, engineers, machinists, technicians often use these tools on the job.

Find the Porting Tools & Counterbores You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of Porting Tools & Counterbores along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

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