RUKO HGB-DIN2181-HSS-60°-MF-4x0.50mm Centre Drill, 4 mm Body, 0.5 mm Pilot, HSS

Precision-ground HSS centre drill with a 60° countersink angle and a 0.5 mm pilot diameter, engineered for accurate centre holes in metalworking.

Overview

The RUKO HGB-DIN2181-HSS-60°-MF-4x0.50mm is a centre drill conforming to DIN 2181, Type R (radius form). It features a 4.0 mm body diameter and a 0.50 mm pilot hole diameter, made from high-speed steel (HSS) with a bright, uncoated finish. The cylindrical shank and right-hand cutting direction ensure compatibility with standard drilling machines and lathes.

What stands out

• DIN 2181 Type R radius form for smooth centre hole geometry
• High-speed steel construction for durability and heat resistance
• 60° countersink angle suitable for standard centre points
• Precision ground for accurate hole positioning

Technical details

• Tool Type: Centre Drill
• Standard: DIN 2181
• Form Type: Type R (Radius Form)
• Material: High-Speed Steel (HSS)
• Countersink Angle: 60°
• Body Diameter (d1): 4.0 mm
• Pilot Hole Diameter (d2): 0.50 mm
• Overall Length: 40-45 mm
• Shank Type: Cylindrical
• Cutting Direction: Right-hand cut
• Surface Finish: Bright (Uncoated)
• Manufacturing Process: Ground
• Application: Producing accurate centre holes for subsequent machining
• Suitable Materials: Steel, Cast Iron, Non-ferrous metals, Plastics
• Tolerance: DIN Standard
• Packaging Quantity: 1 piece

Our verdict

A reliable centre drill for workshops requiring precise centre holes in metal workpieces, built to DIN standards with HSS durability.