Fang Da Wang Reamer Drill Bit Water Pipe Expansion Special Fast Speed Anti-Deviation 15*19+18*24+24*31

Six major selling points of step drill bits

Selected high-quality materials

Precision machining

High efficiency in operation

Long-lasting durability

Complete range of specifications

Wide application

Made of premium HSS (High-Speed Steel)

Surface coated with titanium plating for waterproof, rustproof, and corrosion resistance

Work-grade waterproof treatment for easy maintenance

Fast step drilling speed with no deviation

Smooth pipe mouth, resistant to deviation and wear

Combined step drill and reamer in one for one-time forming

Simple operation with integrated stepped design

Sharp pointed step design with standard 4/6 size high-strength HSS

Double-edge design for sharper and more durable cutting

Standard hex shank for stable clamping and anti-slip, compatible with various electric and lithium drills

Genuine high-speed steel material, not falsely labeled bearing steel