RUKO KES-DIN335-HSSCO-90°-Ø5,3mm upotuspora

Precision 90° countersink with 5% cobalt HSS for clean chamfering in tough materials.

Overview

The RUKO KES-DIN335-HSSCO-90°-Ø5.3mm is a high-performance countersink bit engineered to DIN 335 C standards. Its 90° cutting angle and 5% cobalt-enriched high-speed steel deliver superior wear resistance and heat tolerance, making it ideal for deburring, chamfering, and countersinking in steel, stainless steel, cast iron, non-ferrous metals, and plastics.

What stands out

• 90° cutting angle for standard countersunk screws
• HSS-Co 5% material for extended tool life
• Three-flute design for smooth, chatter-free cutting
• Cylindrical shank for secure chuck grip
• Bright finish for clean, precise results

Technical details

• Tool Type: Countersink
• Standard: DIN 335 C
• Cutting Angle: 90°
• Material: HSS-Co 5%
• Nominal Diameter (d1): 5.3 mm
• Shank Diameter (d2): 5 mm
• Total Length (l1): 45 mm
• Number of Flutes: 3
• Shank Type: Cylindrical
• Cutting Direction: Right-hand cut
• Finish/Coating: Bright (Uncoated)

Our verdict

A reliable, precision-ground countersink for professionals who demand clean, accurate results in demanding materials.