Baolian Nano Coated Pyramid Drill Bit Multi-Functional Metal Tapered Super Hard Reaming Drill Stainless Steel Special Step Drill

Nano coating for enhanced hardness and wear resistance, resulting in sharper cutting edges.

High-quality high-speed steel material ensures durability, long service life, and efficient drilling without blade wear.

Industrial-grade cutting capability with advanced nano technology integration.

Step drill design with 15 graduated sizes for versatile hole drilling from Φ4mm up to Φ32mm.

Reinforced drill shank for increased strength and reduced risk of breakage.

Laser marking with clear, precise diameter identification for easy size recognition.

Universal hex shank compatible with various machines including electric drills, bench drills, and screwdrivers.

Chamfering capability with no burrs, enabling multi-purpose use and improved work efficiency.