SHIMA - Step Drill Bit - Hex 4-12/20mm - HSS Cobalt M35 - Made in Japan -SALE

Internationally used cobalt-containing ultra-hard high speed steel with high wear resistance, high pressure resistance and sintering resistance.

1/4" Hex Shank - Suitable for use in Impact Drivers

Spiral Flute design - for reduced vibration and greater control through steps

SHIMA TOKYO

Design results in reduced vibration and greater control through steps. These step drills are made from M35 Cobalt High Speed Steel which offers the best combination of strength, heat and wear resistance

5x faster holes compared to a standard step drill bit.

12mm bit is the perfect size for meter antennas with the 20mm perfect size hole for holes drilled in meter panel for cable intrusion for meter terminals

Material : HSS Cobalt M35
Size : 4-12/20mm
Shank : Hex shank
Flyte : Sprial flute