Fang Da Wang Cross Impact Drill Bit for Concrete Reinforced Steel Resistant Wear Durable Fast Drilling Square Shank 25*340mm

Suitable for use with square shank four-groove electric hammer drills and round shank two-groove impact drills

Designed for easy drilling operation in concrete, cement pillars, walls, and similar hard materials

1. Secure the drill bit firmly at a 90-degree angle to the drilling surface to prevent movement.

2. When the positioning drill bit penetrates, pause briefly before continuing to drill.

3. Stop operation if abnormal conditions or poor debris removal occur; clear debris before resuming.

4. Use water or coolant during drilling to extend drill bit life.

5. Drill bits are consumable items and are not covered by warranty.

The drill bit uses original YG8C hard alloy and 40CR steel, processed with high-temperature quenching and surface treatment for enhanced appearance and longer service life.

The electric hammer drill bit features a 135-degree angle alloy chisel head without cutting edges, designed for chiseling and drilling hard, brittle materials such as concrete, brick walls, stone, and granite.

The rotation helps remove powder and debris while chiseling a circular hole.

Four-blade tungsten steel alloy capable of drilling steel reinforcement and various cement walls

Penetration-type chip removal for fast debris clearance and durability

Upgraded four-blade drill bit with superior wear resistance and sharpness compared to older two-blade versions

Visual presentation of the drill bits showing the four-blade design and shank types

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