RUKO HGB-DIN2181-HSS-60°-3/4x Countersink Bit, 19 mm Cutting Diameter, 3 Flutes, HSS, DIN 2181

Creating clean, precise conical seats for countersunk screws in metal or plastic often requires a tool that can handle high speeds without dulling. The RUKO HGB-DIN2181-HSS-60°-3/4x countersink bit is engineered for exactly that task. With a 60° cutting angle and three precision-ground flutes, it produces smooth, chatter-free chamfers and deburrs edges in a single pass.

Who is it for

This countersink is intended for machinists, metalworkers, and maintenance professionals who need a reliable tool for deburring, chamfering, and creating conical seats in steel, cast iron, non-ferrous metals, and plastics. It fits standard drilling machines and hand drills with a cylindrical shank.

Main features

• 60° cutting angle for standard countersunk screw heads
• Three-flute design for smooth cutting action and reduced vibration
• High-speed steel (HSS) construction for durability and heat resistance
• Bright, uncoated surface for clean cuts and easy inspection
• Precision ground to DIN 2181 tolerances
• Right-hand cutting direction for conventional drilling

Specifications

• Tool type: Countersink
• Standard: DIN 2181
• Material: High-Speed Steel (HSS)
• Cutting angle: 60°
• Nominal diameter (d1): 19.0 mm
• Shank diameter (d2): 10 mm
• Overall length (l1): 63 mm
• Shank length (l2): 36 mm
• Number of flutes: 3
• Shank type: Cylindrical
• Cutting direction: Right-hand cut
• Surface treatment: Bright (uncoated)
• Application: Deburring, chamfering, creating conical seats
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Precision ground
• Tolerance class: DIN 2181 standard

Tips

Use a cutting fluid when working with steel to extend tool life and improve surface finish. For best results, run the countersink at a moderate speed and apply steady, even pressure.