RUKO MGB-DIN2182-HSSCo-60°-Nr.8 HSS-Co Center Drill DIN 333 A 3.15/8.0 mm 60°

This RUKO center drill stands out with its cobalt-enriched HSS-Co steel, which keeps the cutting edges hard at elevated temperatures. The 60° countersink angle and the 3.15 mm pilot drill produce a clean, concentric start for subsequent machining operations.

Highlights

• HSS-Co (5% cobalt) for high heat resistance
• DIN 333 A geometry with 60° countersink
• Pilot drill diameter 3.15 mm, body diameter 8.0 mm
• Bright, uncoated surface for precise grinding
• Right-hand cutting, cylindrical shank

In daily use

The two-flute pilot drill centers the tool without wandering, while the conical countersink forms a 60° seat for lathe centers or subsequent drilling. Suitable for steel, stainless steel, cast iron, non-ferrous metals and plastics.

Full specifications

• Standard: DIN 333 A
• Material: HSS-Co (High-Speed Steel Cobalt)
• Body diameter (d2): 8.0 mm
• Pilot drill diameter (d1): 3.15 mm
• Overall length (l1): 56 mm
• Countersink angle: 60°
• Shank type: Cylindrical
• Cutting direction: Right-hand cut
• Surface finish: Bright (uncoated)
• Manufacturing process: Ground
• Flute design: 2-flute pilot drill with conical countersink
• Application: Creating center holes for turning, grinding, and other machining operations

Final note

A reliable center drill for workshops that need precise starting holes in tough materials.