3pcs Step Drill Bit Set Wholesale Step Bits

Selling Point for 3PCS Step Drill Bit Set Wholesale

1. Advanced ladder drill bits: Each unit drill bit is made of industrial high-speed steel with a titanium nitride coating, which has durability and strength. It can be punched and drilled on materials such as plastic, aluminum, wood, copper, stainless steel, and other types of metal sheets.

2. Metal ladder drill: It has a bifurcated tip that can accelerate cutting speed while preventing the bevel from leaving the center line of the drilling hole, making drilling on metal fast, efficient, and clean.

3. Spiral design for 3pcs Step Drill Bit Set Wholesale: The double groove spiral groove design can remove chips, dust, and debris, achieving clearance and smooth cutting. With 31 step sizes, each hole made with these step drills will be accurate.

4. Quick replacement: The 1/4 inch hexagonal handle enables a simple, convenient, and fast stepping drill switch, and is compatible with impact power tools. 5.3pcs Step Drill Bit Set Wholesale includes: Each set of drill bits is equipped with 3 drill bits, with a total of 31 sizes, which can be added to your drilling library: 13-grade drill bits (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2 inch) 6-grade drill bits (3/16, 1/4, 5/16 3/4, 13/16, 7/8 inch).

Essential for drilling! Universality of High-Speed Steel

Our stepped drill bits use a structure that combines traditional high-speed steel with a titanium nitride coating, making them more durable. This also demonstrates the ability and durability of drill bits to drill multiple times on surfaces such as plastic, aluminum, copper, and stainless steel.

Unique 2-slot spiral design 3pcs Step Drill Bit Set Wholesale

The double-groove spiral design also allows for the easy escape of material particles, resulting in cleaner drilling operations. With every step you take, you can feel the drill stop, so you will never drill bigger than you