UAL530-Drillco® Nitro Heavy-Duty Mechanic's Length Drill Bit Set

• Manufactured from a premium grade of M-7N molybdenum high speed steel
• The Nitro Heavy-Duty 135° Split Point Drill with a Nitride surface treatment that gives a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel
• Body and clearance are gold and black surface treated for maximum lubricity
• Recommended for use in stainless steel and other hard metal drilling

Specifications

• No. of Pieces: 29
• Material: High Speed Steel

Additional Specifications

• Finish: Black & Gold
• Point Angle: 135°
• Size Range: 1/16" - 1/2" by 64ths