Countersink Bit 1/4" M10 x 35 mm, HSS Steel - Wiha 28058

The Wiha 28058 countersink bit with 1/4" hex shank precisely countersinks M10 flat-head screw holes to the required 20.5 mm cone diameter. The reduced, precision-ground HSS profile guarantees outstanding chip removal, no-chatter cutting and smooth, groove-free surfaces throughout extended cordless driver use.

Benefits

• 20.5 mm countersink diameter - precise fit for M10 flat-head screws
• Ground HSS steel - outstanding chip removal, chatter-free operation, groove-free surface
• Reduced, over-tightened profile for even, controlled material removal
• 1/4" hex shank to DIN 3126, ISO 1173, style C6,3 - fits all standard cordless drivers
• 3.5 mm minimum diameter for tight tolerance requirements

Technical Data

• Screw size: M10
• Countersink diameter: 20.5 mm
• Minimum diameter: 3.5 mm
• Shank: 1/4" hex (DIN 3126, ISO 1173, style C6,3)
• Drive: DIN 3120, ISO 1174, style A 6.3 + A 10
• Overall length: 35 mm
• Product dimensions (LxWxD): 55 x 29 x 29 mm

Applications

Universal countersinking of M10 holes in metal, plastic and wood. Particularly suited for use in cordless drivers. Made in Bulgaria. Standards: DIN 3126, ISO 1173, style C6,3.