RUKO SPB-DIN338 9.75mm HSS-Co Twist Drill Bit

Drilling into high-alloy steels, stainless steel, cast iron, bronze, and hard plastics demands a bit that resists heat and holds its edge. The RUKO SPB-DIN338 9.75mm HSS-Co twist drill bit is made from high-speed steel with 5% cobalt, fully ground to DIN 338 with a 135° split point for accurate starting and reduced wandering.

Who is it for

Industrial machinists, professional metalworkers, and serious DIYers who need a durable, precise drill bit for tough materials.

Main features

• HSS-Co with 5% cobalt for high heat resistance and durability
• Fully ground twist drill bit to DIN 338 standard
• 135° split point for self-centering and reduced thrust
• Cylindrical shank, right-hand cutting, h8 tolerance
• Bright surface finish

Specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co (5% cobalt)
• Diameter: 9.75 mm
• Overall length: 133 mm
• Flute length: 87 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point grind: Split point
• Tolerance: h8
• Direction of cut: Right-hand
• Surface finish: Bright
• Manufacturing process: Fully ground
• Recommended materials: High-alloy steels, stainless steel, cast iron, bronze, hard plastics

Tips

Use cutting fluid when drilling stainless or high-alloy steels to extend bit life. For precise holes, drill a pilot hole first.