- Made of special hi-molybdenum tool steel.
- Heat treated at 2185 degrees Fahrenheit and then nitro-carburized at -950 degrees
- Measurably harder than standard high-speed steel
- Feature a 135 degrees split point for faster penetration and accurate starting without a center punch
- The body and clearance of this bit are “gold surface" treated for maximum lubricity
- Designed for drilling in harder steels such as stainless
- Less brittle than a cobalt bit, so you will not have the problem of chipping
- They have tri-flat ½” shanks (which can be used in a ½” keyed chuck drill)
- The shanks are flatted to prevent slipping
- Comes in an aluminum case
- Sizes include 1/2” to 1” by 64th increments
Product ID: 3638
33pc Black/Gold Drill Index (1/2" - 1")
SKU: 3638