RUKO SPB-DIN338-9.3mm-HSSCo Twist Drill Bit

Drilling through tough materials like stainless steel and high-alloy steel can quickly dull standard drill bits, causing frustration and wasted time. The RUKO SPB-DIN338-9.3mm-HSSCo twist drill bit tackles this problem with a cobalt-alloyed high-speed steel construction, delivering high heat and wear resistance for demanding industrial applications.

Who is it for

This drill bit is ideal for machinists, metalworkers, and serious DIYers who need reliable performance when drilling stainless steel, high-alloy steel, cast iron, non-ferrous metals, and plastics.

Main features

• 5% cobalt alloyed HSS-Co for high heat resistance and durability
• 135° split point for self-centering and reduced walking
• Fully ground with a bronze finish for precise holes and improved chip evacuation
• DIN 338 standard dimensions: 9.3 mm diameter, 125 mm overall length, 87 mm flute length
• Cylindrical shank with h8 tolerance for secure chucking

Specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Cobalt content: 5%
• Standard: DIN 338
• Diameter: 9.3 mm
• Shank type: Cylindrical (straight shank)
• Shank diameter: 9.3 mm
• Point angle: 135°
• Point type: Split point
• Surface finish: Bronze
• Cutting direction: Right-hand cutting
• Overall length: 125 mm
• Flute length: 87 mm
• Tolerance: h8
• Manufacturing method: Fully ground
• Recommended materials: Stainless steel, high-alloy steel, cast iron, non-ferrous metals, plastics
• Application: Industrial drilling, workshop use
• Packaging quantity: 1 piece

Tips

Use cutting fluid when drilling stainless steel to extend bit life. For best results, start with a center punch or pilot hole to guide the split point.