RUKO SPB-DIN1897-HSSCo Stub Drill Bit 10.0 mm

Precision-ground stub drill bit with 5% cobalt high-speed steel for tough materials. The 130° split point self-centers and reduces walking, while the short flute design provides maximum rigidity for accurate holes in alloyed and unalloyed steel, stainless steel, cast iron, and non-ferrous metals.

Overview

This RUKO stub drill bit conforms to DIN 1897 and is manufactured from solid HSS Co 5% (high-speed steel with 5% cobalt). It features a bright, uncoated surface and right-hand cutting with a cylindrical shank. The 10.0 mm diameter with h8 tolerance ensures precise holes, and the short overall length of 89 mm offers excellent stability in demanding applications.

What stands out

• Split point (cross-ground) for self-centering and reduced thrust
• High cobalt content for very high heat resistance
• Short flute length for enhanced rigidity
• Ground from solid for consistent quality

Technical details

• Drill bit type: Stub drill bit
• Standard: DIN 1897
• Material: HSS Co 5%
• Diameter: 10.0 mm
• Shank type: Cylindrical
• Shank diameter: 10.0 mm
• Point angle: 130°
• Point grind: Split point
• Surface finish: Bright
• Flute type: Spiral
• Overall length: 89 mm
• Flute length: 49 mm
• Tolerance: h8
• Cutting direction: Right-hand
• Manufacturing process: Ground from solid

Our verdict

A professional-grade stub drill for precise, stable drilling in hard materials. Ideal for machine shops and demanding metalworking tasks.