Broca helicoidal HSS-Co RUKO SPB-DIN338-TypUNI-HSSCo-8,50-SB 8,5 mm DIN 338

For machinists and metalworkers drilling precise 8.5 mm holes in tough materials, the RUKO SPB-DIN338-TypUNI-HSSCo-8,50-SB twist drill bit delivers reliable performance. Its HSS-Co construction with 5% cobalt withstands high heat, making it suitable for steel, stainless steel, and cast iron up to 1100 N/mm² tensile strength.

Key specifications

• Drill diameter: 8.5 mm
• Total length: 117 mm
• Working length: 75 mm
• Material: HSS-Co (5% cobalt)
• Point angle: 135° split point
• Shank: cylindrical, 8.5 mm diameter
• Standard: DIN 338, right-hand cutting, tolerance h8

Why choose it

The split point design self-centers for accurate starts without a center punch, reducing walking and improving hole quality. The bright ground finish and high heat resistance extend tool life in demanding applications.

Ideal use cases

• Drilling steel and stainless steel components
• Creating holes in cast iron and non-ferrous metals
• General workshop and maintenance tasks

Good to know

Universal type suitable for a wide range of materials including plastics. Sold individually.