Precision Twist Drill 5998602 R40 General Purpose Screw Machine Drill 13/16 in HSS

The Precision Twist Drill 5998602 is an R40 Series General Purpose Screw Machine (Stub Length) Drill Bit with a 13/16 in (0.8125 in) diameter. Designed for high-volume production environments, this stub-length drill offers greater rigidity and reduced deflection compared to standard jobber-length bits, making it ideal for use in screw machines, CNC machining centers, and drill presses.

Key Features:

• Diameter: 13/16 in (0.8125 in) fractional size
• Series: R40 General Purpose Screw Machine (Stub) Length
• Material: High-Speed Steel (HSS) for durability and heat resistance
• Finish: Bright (uncoated) for general-purpose applications
• Point Angle: 118° conventional point for easy positioning on most materials
• Flute Style: Spiral flute, right-hand cutting direction
• Shank: Straight shank
• Stub length design provides maximum rigidity and minimizes chatter and deflection

The R40 is engineered to cut a wide range of materials including mild steel, aluminum, brass, copper, and plastics. Precision Twist Drill, a brand of Dormer Pramet, has been manufacturing cutting tools to exacting standards for over a century, ensuring consistent quality and dimensional accuracy in every drill bit.