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  • Precise Drilling: The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensures the precise countersinking and hole smooth and clean
  • Professional and widely used bits: HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high-temperature alloy, titanium alloy, hard plastics, and woods, and also can be used for softer materials
  • Precise 135° split point and twist design: Twist design 135-degree split point and twist design increases the cutting speed with self-centering and prevents walking, clear chips and particles faster
  • 115-Pieces includes 29pieces fractional sizes: 1/16” to 1/2” in 1/64th increments; 26pcs Letter Size: A To Z; 60pcs numbered Size: #1 To #60
  • Set includes the drill bit holder with size index for easy storage and organizing
  • Material: High-Speed Steel
  • Angle Point: 135 Degree
  • Flute Type: Spiral
  • Shank Type: Straight Shank
  • Minimum Diameter: 1/16"
  • Maximum Diameter: 1/2"
  • Fractional Size: 29PC (1/16” to 1/2” in 1/64th increments)
  • Letter Size: 29PC A To Z
  • Numbered Size: 60PC #1 To #60
Product Content
  • 115pc Twist Drill Bit Set
  • Storage Case

Stark USA 115pc Metal Fractional Drill Index Chart BIT Set

Each of these 115 drill bits comes organized in a metal-indexed storage case for easy transport to your worksite. These drill bits retain their hardness up to 1000 degrees Fahrenheit making them ideal for drilling cast iron, heat-treated steel, stainless steel, and other hard materials. With aggressive 135-degree tips, these drill bits not only last longer but also cut faster than your standard high-speed steel bits.


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Customer Reviews

Based on 7 reviews
Brooks R.
WOW, talk about a bargain!

The quality of these bits is excellent for your garage Bridgeport. I spent $78 on this set to replace my set that cost over $500, and I genuinely couldn't discern any difference. The index was precisely the same as my $500 set. You can't find a better price than this!

Jeff Texas



Initial impressions are quite positive. The box is manufactured in the USA, while the bits are from China. Based on my years of experience drilling and tapping holes in steel, they seem to be of good quality. I'll provide more details later on.

douglas kehoe
Five Stars

I genuinely appreciate these drill bits and the accompanying box.

Chad D
A must have!

This is an essential item for every garage! With a wide variety of bits in every size, I’ve stored some in my drill press box and others in my regular toolbox. I still have plenty left for replacements.