This premium high-speed steel drill set is precision ground to tight tolerances for drilling metal, wood, and plastic. Featuring a 135-degree split point to eliminate walking and a nitride black and gold treatment, these heavy-duty bits offer increased hardness and extended tool longevity.

• Heavy-duty jobber length twist drills designed for efficient drilling in metal, wood, and plastic.
• 135-degree split point eliminates walking on work-pieces and requires less force for faster drilling.
• Nitride black and gold treatment provides a tough protective layer for increased hardness and longer tool life.
• Precision ground to tight tolerances for high-accuracy performance.
• Includes 3 flats on shanks for sizes above 11/64 in. to ensure tighter chucking.
• Premium high speed steel construction for professional-grade durability.
• Right-hand direction of cut for standard drilling applications.