RUKO SPB-DIN338-11/64-HSSCo HSS-Co Twist Drill Bit, 11/64 inch (4.37 mm), DIN 338, Split Point, 135°

Precision drilling in tough materials like stainless steel and alloyed steel demands a drill bit that resists heat and wear. The RUKO SPB-DIN338-11/64-HSSCo twist drill bit is made from high-speed steel with 5% cobalt (HSS-Co), providing high heat resistance and durability for demanding metalworking tasks.

Who is it for

This drill bit is for machinists, metalworkers, and serious DIYers who need reliable performance in alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics.

Main features

• HSS-Co with 5% cobalt for high heat and wear resistance
• DIN 338 standard with cylindrical shank and h8 tolerance
• 135° split point for self-centering and reduced walking
• Fully ground from solid for precise cutting edges
• Bright finish for clean chip evacuation

Specifications

• Drill bit type: Twist drill bit
• Diameter: 11/64 inch (4.37 mm)
• Overall length: 79 mm
• Flute length: 47 mm
• Shank type: Cylindrical
• Shank diameter: 11/64 inch (4.37 mm)
• Point angle: 135°
• Point type: Split point
• Cutting direction: Right hand cut
• Material: HSS-Co (5% cobalt)
• Surface finish: Bright
• Tolerance: h8
• Manufacturing process: Fully ground
• Packaging quantity: 1 piece

Tips

Use cutting fluid when drilling stainless steel to extend tool life. Ensure the workpiece is securely clamped and use appropriate speeds for the material.