Deli Extended Alloy Eccentric Drill Bit Set 10mm 3-Pack for Dry Drilling Tiles Glass Marble Concrete

Special offset head design with dual spiral chip removal grooves for smooth cutting and efficient debris evacuation

Hexagonal shank design for high hardness and wear resistance

Shortened center blade distance for accurate and fast positioning on tiles

Double U-shaped chip removal grooves with precision polished and rust-resistant drill body surface

High drilling efficiency with sharp cutting edges

No need for water cooling; higher rotation speed increases drilling quantity

1. Not recommended for use with cordless drills or screwdrivers below 18V due to insufficient torque.

2. When drilling tiles, glass, or stone, use water cooling to extend drill bit life.

3. When drilling walls, avoid steel reinforcement bars to prevent chipping of the cutting edge; change drilling position if encountered.