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  5. Cutting Tools
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  7. Porting Tools & Counterbores
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Porting Tools & Counterbores (995 items) - Page 4

Cleveland Counterbore, 7.250" L, 0.500" dia., Bright C91722
Cleveland

Counterbore, 7.250" L, 0.500" dia., Bright

Zoro # G4781100
Mfr # C91722
product price:  $160.99
/ea
Cleveland Counterbore, 8.813" L, 1.000" dia., Bright C91734
Cleveland

Counterbore, 8.813" L, 1.000" dia., Bright

Zoro # G4865758
Mfr # C91734
product price:  $279.99
/ea
Cleveland Port Tool, 3.813" L, 0.266" dia., Bright C46424
Cleveland

Port Tool, 3.813" L, 0.266" dia., Bright

Zoro # G4789808
Mfr # C46424
product price:  $100.99
/ea
Cleveland Counterbore, 7.000" L, 0.500" dia., Bright C91717
Cleveland

Counterbore, 7.000" L, 0.500" dia., Bright

Zoro # G4756217
Mfr # C91717
product price:  $182.99
/ea
Cleveland Port Tool, 2.375" L, 0.250" dia., Bright C46888
Cleveland

Port Tool, 2.375" L, 0.250" dia., Bright

Zoro # G4798637
Mfr # C46888
product price:  $78.95
/ea
Super Tool Counterbore, 13/16" D, Carbide Tipped 56410
Super Tool

Counterbore, 13/16" D, Carbide Tipped

Zoro # G0330141
Mfr # 56410
product price:  $114.99
/ea
Hhip No 10 X 13/64" High Speed Steel 3 Flute Solid Pilot Counterbore 2007-0010
Hhip

No 10 X 13/64" High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467947
Mfr # 2007-0010
product price:  $13.65
/ea
Super Tool Reduced Shank Counterbore, 1/2" D 52216
Super Tool

Reduced Shank Counterbore, 1/2" D

Zoro # G0331340
Mfr # 52216
product price:  $85.43
/ea
Super Tool Reduced Shank Counterbore, 1-3/16" D 52238
Super Tool

Reduced Shank Counterbore, 1-3/16" D

Zoro # G0331499
Mfr # 52238
product price:  $192.99
/ea
Hhip No 6 X .150" High Speed Steel 3 Flute Solid Pilot Counterbore 2007-0006
Hhip

No 6 X .150" High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467983
Mfr # 2007-0006
product price:  $10.21
/ea
Drill America No 8 .163mm Machine Screw Solid Counterbore DEWCBRSOL8
Drill America

No 8 .163mm Machine Screw Solid Counterbore

Zoro # G1739695
Mfr # DEWCBRSOL8
product price:  $12.65
/ea
Cleveland Counterbore, 2.687" L, 0.375" dia., Bright C46674
Cleveland

Counterbore, 2.687" L, 0.375" dia., Bright

Zoro # G4802679
Mfr # C46674
product price:  $68.55
/ea
Cleveland Counterbore, 1.375" L, 0.156" dia., Bright C46584
Cleveland

Counterbore, 1.375" L, 0.156" dia., Bright

Zoro # G4757151
Mfr # C46584
product price:  $27.29
/ea
Keo Counterbore, 1/64 Clearance, Size 7/16, Co 902-000-026
Keo

Counterbore, 1/64 Clearance, Size 7/16, Co

Zoro # G2216444
Mfr # 902-000-026
product price:  $89.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0937" (3/32) 25493
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0937" (3/32)

Zoro # G7254024
Mfr # 25493
product price:  $50.39
/ea
Drill America No 10 .189mm Machine Screw Solid Counterbore DEWCBRSOL10
Drill America

No 10 .189mm Machine Screw Solid Counterbore

Zoro # G1743999
Mfr # DEWCBRSOL10
product price:  $13.05
/ea
Cleveland Counterbore Set, 8 Pieces, Bright C91770
Cleveland

Counterbore Set, 8 Pieces, Bright

Zoro # G4865968
Mfr # C91770
product price:  $1,061.99
/ea
Cleveland Counterbore, 2.406" L, 0.313" dia., Bright C46673
Cleveland

Counterbore, 2.406" L, 0.313" dia., Bright

Zoro # G4845309
Mfr # C46673
product price:  $70.75
/ea
Keo Counterbore, 1/32 Clearance, Size 5/8, Co 902-000-033
Keo

Counterbore, 1/32 Clearance, Size 5/8, Co

Zoro # G1975653
Mfr # 902-000-033
product price:  $161.99
/ea
Cleveland Counterbore, 1.875" L, 0.188" dia., Bright C46556
Cleveland

Counterbore, 1.875" L, 0.188" dia., Bright

Zoro # G4823283
Mfr # C46556
product price:  $26.15
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 20X13 mm 156020 20X13
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 20X13 mm

Zoro # G914389526
Mfr # 156020 20X13
product price:  $47.19
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.4 mm 156020 6,5X3,4
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 6.5X3.4 mm

Zoro # G214389462
Mfr # 156020 6,5X3,4
product price:  $24.55
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32) 25522-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3437" (11/32)

Zoro # G7164780
Mfr # 25522-C3
product price:  $128.99
/ea
Keo Counterbore, 1/64 Clearance, Size 5/8, Co 902-000-032
Keo

Counterbore, 1/64 Clearance, Size 5/8, Co

Zoro # G3372582
Mfr # 902-000-032
product price:  $136.99
/ea
Keo Counterbore, Close Fit, Size No 5, Cobalt 902-000-004
Keo

Counterbore, Close Fit, Size No 5, Cobalt

Zoro # G0806881
Mfr # 902-000-004
product price:  $54.49
/ea
Drill America No 6 .137mm Machine Screw Solid Counterbore DEWCBRSOL6
Drill America

No 6 .137mm Machine Screw Solid Counterbore

Zoro # G1741357
Mfr # DEWCBRSOL6
product price:  $15.29
/ea
Keo Counterbore, Close Fit, Size 7/8, Cobalt 902-000-037
Keo

Counterbore, Close Fit, Size 7/8, Cobalt

Zoro # G1600033
Mfr # 902-000-037
product price:  $308.99
/ea
Keo Counterbore, Close Fit, Size No 8, Cobalt 902-000-010
Keo

Counterbore, Close Fit, Size No 8, Cobalt

Zoro # G2292123
Mfr # 902-000-010
product price:  $59.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3937" 2340M
Harvey Tool

Counterbores - Flat Bottom, 0.3937"

Zoro # G7255290
Mfr # 2340M
product price:  $98.55
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.2969" (19/64) 25519
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.2969" (19/64)

Zoro # G7161536
Mfr # 25519
product price:  $102.99
/ea
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:  $8.65
/ea
Cleveland Pilot for Counterbores, 3/32 in, 5/32 in C46533
Cleveland

Pilot for Counterbores, 3/32 in, 5/32 in

Zoro # G4784783
Mfr # C46533
product price:  $25.89
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.0787" 2542M
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.0787"

Zoro # G7160459
Mfr # 2542M
product price:  $49.85
/ea
Drill America No 4 .111mm Machine Screw Solid Counterbore DEWCBRSOL4
Drill America

No 4 .111mm Machine Screw Solid Counterbore

Zoro # G1746835
Mfr # DEWCBRSOL4
product price:  $8.85
/ea
Cleveland Counterbore, 2.234" L, 0.188" dia., Bright C46316
Cleveland

Counterbore, 2.234" L, 0.188" dia., Bright

Zoro # G4812862
Mfr # C46316
product price:  $71.71
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 1 5/16-12 UN MS16142-16S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 1 5/16-12 UN

Zoro # G7937352
Mfr # MS16142-16S
product price:  $298.79
/ea
Porting Tools & Counterbores (995 items) - Page 4
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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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