High Speed Steel Step Drill Bit, HSS Titanium Coated Cone Hole Cutter for Metal & Wood

This HSS Titanium Coated Step Drill Bit is the ultimate tool for professionals and DIY enthusiasts alike. Crafted from high-speed steel (HSS 4241) with a durable titanium nitride coating, it offers up to three times longer cutting life and smoother drilling performance .

Key Features:

• Versatile 4‑32 mm & 4‑20 mm hole cutting – two cone step bits cover 15 and 9 sizes respectively, eliminating the need for multiple twist drills.

• Titanium coating reduces friction and heat, allowing cooler, cleaner cuts through sheet metal, aluminum, brass, wood, PVC, fibreglass, and more .

• Hex shank design fits securely in hand drills, bench drills, and power drivers for enhanced stability and control.

• Smooth, burr-free holes in one go – drill, bevel, and deburr in a single operation to save time on plumbing, electrical panels, HVAC, or automotive tasks .
  
  

Performance & Durability:

Made of hardened HSS 4241, this step drill bit set withstands high RPM and repeated use. The titanium nitride coating delivers exceptional wear resistance, ensuring sharp performance even after sharpening . Stick to 250–400 RPM for optimal results.

Why Choose This Bit:

Engineered for reliability and versatility, this tool set—covering both 4‑20 mm and 4‑32 mm steps—streamlines hole-making, slashes tool clutter, and delivers precise, polished results every time. Ideal for professionals or home users seeking clean, efficient drilling solutions.