Guhring 477 90 Degree HSS Taper Shank Countersink

The Guhring 477 HSS Countersink is a premium industrial-grade tool designed to produce clean, accurate 90° countersinks for countersunk screws, deburring, and chamfering applications. Manufactured in Germany from high-quality High Speed Steel (HSS), the Series 477 offers exceptional durability, precision, and long tool life in demanding workshop and production environments.

Designed with a Morse taper shank for maximum rigidity and secure machine holding, the Guhring 477 is ideal for use in pillar drills, radial arm drills, lathes, and other Morse taper spindle machines. The 3-flute, radial relieved (Form D) design delivers smooth cutting action, reduced chatter, and an excellent surface finish across a wide range of materials. The tool is manufactured to DIN 335 standards and features a bright finish with a right-hand cutting direction.

Suitable for machining:

• Carbon and alloy steels
• Stainless steel
• Cast iron
• Aluminium and non-ferrous metals
• Titanium and special alloys
• Hardened steels (application dependent)

Features & Benefits

• Genuine Guhring Series 477
• Premium High Speed Steel (HSS) construction
• 90° countersink angle
• Morse taper shank for superior rigidity
• DIN 335 Form D specification
• 3-flute radial relieved geometry for smooth, chatter-free cutting
• Bright finish for precision performance
• Right-hand cutting direction
• Ideal for countersinking, chamfering and deburring
• Manufactured in Germany