Material: Carbide steel
Drilling diameter: 28mm;
Shank diameter: 6.35mm;
Overall length: 80 mm.
Please note:
1. When drilling, the Forstner drill bit can only rotate clockwise.
Irreversible, the speed from low to high is a gradual process.
2. Please grind the front end and tip of the tool to avoid aging and damage when breaking;
Otherwise, the accuracy and quality of drilling will drop sharply after the drill bit breaks.