Dormer A100 HSS Jobber Drill Bit 0.70mm Pack of 10 Pcs

This is a high-speed steel twist drill bit designed for general drilling in steel and cast iron. It features a right-hand cutting direction and is suitable for normal drilling tasks with precise, efficient performance. Key specifications include a tip diameter of 0.70 mm, overall length of 28 mm, and a working length of 9 mm, with a cylindrical shank and grounding that accommodates a 118° point. The drill bit is intended for use with standard drill chucks and drill presses, and is supplied in a box of 10 pieces. The cutting profile is ground with a cross-cut from 3.0 mm diameter, with a cutting depth of 4x the diameter and a feed rate in steel up to 800 N of 0.02 mm per revolution. The nominal diameter tolerance is h8, ensuring precision for general engineering tasks, and it is compatible with hand and machine use when appropriate.

Specifications

• Tip diameter 0.70 mm
• Overall length 28 mm
• HSS with 118° point
• Right-hand cutting, 4xD depth
• Cylindrical shank, fits standard chucks, 10 pcs

Installation: Insert the drill bit into a compatible drill chuck. Securely tighten the chuck to hold the drill bit in place.