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Tools Tool Sets

Best Steel Counterbore Sets

Melinda Harris
Written by Melinda Harris
Updated November 2021
Bottom line
Pros
Cons
Best of the Best
Accusize Industrial Tools 7-Piece H.S.S. Solid Cap Screw Counterbore Set
Accusize Industrial Tools
7-Piece H.S.S. Solid Cap Screw Counterbore Set

Best used in a drill press, these counterbores work well with standard-sized screws and allen-head cap screws.

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Bottom Line

Best used in a drill press, these counterbores work well with standard-sized screws and allen-head cap screws.

Pros

7-piece high-speed steel, solid capscrew counterbore set. 3 flute, straight shank. Straight shank item. Bits are sharp and effective.

Cons

Pilots are not removable or interchangeable.

Best Bang for the Buck
ProlineMax 7-Piece HSS Counterbore Set Size
ProlineMax
7-Piece HSS Counterbore Set Size

This 7-piece counterbore set gives you great cutting resistance. Good chip flow helps you get the job done faster.

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Bottom Line

This 7-piece counterbore set gives you great cutting resistance. Good chip flow helps you get the job done faster.

Pros

7-piece high speed steel cobalt counterbore set. Used for expanding general rough hole, or for hole processing for bolts. 3 lips for regrinding create a smooth chip flow and powerful cutting resistance.

Cons

Pilot portions of each bit are not removable or interchangeable.

HHIP 21-Piece HSS Interchangeable Pilot Counterbore Set
HHIP
21-Piece HSS Interchangeable Pilot Counterbore Set

This set's interchangeable pilot gives you versatility that fixed sets do not. They work great with either wood or metal.

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Bottom Line

This set's interchangeable pilot gives you versatility that fixed sets do not. They work great with either wood or metal.

Pros

21-piece, high speed steel, interchangeable pilot counterbore set. Includes 14 pilots with a 5/32-inch shank. Also includes 6 counterbores. One holder with a 3/8-inch shank.

Cons

Not very precisely machined. Pilot shanks are a loose fit.

Accusize Industrial Tools 7-Piece Premium Metric HSS Solid Capscrew Counterbore Set
Accusize Industrial Tools
7-Piece Premium Metric HSS Solid Capscrew Counterbore Set

A quality counterbore set from a name you trust, with metric measurements.

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Bottom Line

A quality counterbore set from a name you trust, with metric measurements.

Pros

7-piece, high speed steel metric capscrew counterbore set. 3 flute straight shank. Includes M3, M4, M5, M6, M8, M10, M12. Bright Finished. Makes clean holes, even in metal.

Cons

Case may break easily.

Accusize Industrial Tools 7-Piece Premium HSS Solid Capscrew Counterbore Set
Accusize Industrial Tools
7-Piece Premium HSS Solid Capscrew Counterbore Set

Premium steel and a more solid box take this counterbore set to the next level.

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Check Price at Amazon
Bottom Line

Premium steel and a more solid box take this counterbore set to the next level.

Pros

7-piece, premium quality high speed steel set. 3 flute, straight shank. Good quality for the money.

Cons

Difficult to tell whether counterbores are higher quality than standard model.

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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. About BestReviews  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.About BestReviews 
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First Reviewed
November 06, 2021
30
Models
considered
28
Hours
researched
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Melinda Harris
Written by Melinda Harris

Updated November 2021

A steel counterbore set can provide the range of sizes you need for drilling pilot holes properly. A counterbore is a pilot hole with a flat-bottomed opening to accommodate for screw heads. The number of pieces in a counterbore set varies. If you know you’ll need a range of sizes, you may want to opt for a set with as many as 22 pieces. Some sets may include interchangeable pilots, which offer more options and versatility. Organized storage in a wooden case can make for easy use and portability. If you need to work with materials tougher than wood, ensure that the bits in the set you purchase are durable and up for the task.

Our Top Picks
Accusize Industrial Tools
Best of the Best
Accusize Industrial Tools
7-Piece H.S.S. Solid Cap Screw Counterbore Set
Bottom Line
Best used in a drill press, these counterbores work well with standard-sized screws and allen-head cap screws.
Shop Now
ProlineMax
Best Bang for the Buck
ProlineMax
7-Piece HSS Counterbore Set Size
Bottom Line
This 7-piece counterbore set gives you great cutting resistance. Good chip flow helps you get the job done faster.
Shop Now
HHIP
Top Pick
HHIP
21-Piece HSS Interchangeable Pilot Counterbore Set
Bottom Line
This set's interchangeable pilot gives you versatility that fixed sets do not. They work great with either wood or metal.
Shop Now
Accusize Industrial Tools
Top Pick
Accusize Industrial Tools
7-Piece Premium Metric HSS Solid Capscrew Counterbore Set
Bottom Line
A quality counterbore set from a name you trust, with metric measurements.
Shop Now
Accusize Industrial Tools
Top Pick
Accusize Industrial Tools
7-Piece Premium HSS Solid Capscrew Counterbore Set
Bottom Line
Premium steel and a more solid box take this counterbore set to the next level.
Shop Now
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