21 Pc Mechanic Length Black & Gold Drill Bit Set 1/16″ – 3/8″

Specifications

Special Hi-Molybdenum tool steel
135° split point for fast penetration and accurate starting without a center punch
Precision ground point, body, clearance and drill diameter for the ultimate in accuracy and performance
Body and clearance are gold surface treated for maximum lubricity
Drills are heat treated at 2185° F and then nitro-carburize finished at 950° F to be measurably harder than high speed steel
Space aged nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness
Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications
Shank Diameter: 3/8"
Finish: Black & Gold
Size: 1/16" - 3/8" x 64ths
Type: Mechanics Drill Set
Flute Type: Standard
Shank Type: 3 Flats