RUKO DIN 338 broca helicoidal HSS-G 8,4 mm punta en cruz

This RUKO twist drill bit stands out with its fully ground HSS-G construction and split point tip, delivering precise centring and reduced feed force. Unlike standard roll-forged bits, the DIN 338 geometry and h8 tolerance ensure accurate holes in metal and hard plastics.

Highlights

• Diameter: 8.4 mm
• Material: High-speed steel (HSS-G)
• Fully ground, split point (135°)
• DIN 338, right-hand cutting, h8 tolerance

In daily use

The bright, uncoated finish and cylindrical shank fit standard drill chucks. The 117 mm total length with 75 mm working length provides good reach for general-purpose drilling in alloyed and unalloyed steel, cast iron, non-ferrous metals, and hard plastics.

Full specifications

• Drill bit type: Twist drill bit
• Diameter: 8.4 mm
• Total length: 117 mm
• Working length: 75 mm
• Material: HSS-G
• Manufacturing process: Fully ground
• Point angle: 135°
• Tip geometry: Split point
• Shank type: Cylindrical
• Tolerance: h8
• Cutting direction: Right-hand
• Surface finish: Bright

Final note

A reliable choice for workshop and industrial drilling tasks where precision and durability matter.