Step drill bit | from 66 to 78

MC1632 High-Speed Steel Step Drill for conduit, drills holes from 16 to 32mm. Made of durable high-speed steel. Suitable for drilling in various materials including plastic and metal. Easy and efficient use.

The IRWIN Step Drill Bit 5-35mm, model number IRW10502854, is a versatile tool for drilling holes in metal, plastic, and other materials. It features 13 steps ranging from 5 to 35mm and can drill up to 2 to 3mm incrementally per step.

Three high-speed HSS M2 double flute step drills - Double straight flutes for efficient swarf clearance - Allows clog-free, precision drilling of eighteen different size holes with just three bits - Size #1: 4-12mm Size #2: 4-22mm in 2mm increments Size #

Versatile step drill bit for precise hole making, with 10 different hole sizes from 5 to 28.3mm in one tool.

CK HSS Cone Drill Bits are precision tools designed for drilling metals and hard materials with ease. Made from high-speed steel, these bits provide long-lasting sharpness and durability.

CK HSS TiN Spiral Fluted Step Drill Bit - A high-quality drill bit that features a spiral fluted design for smooth cutting and a TIN coating for increased wear resistance. Suitable for use with metals, plastics and other materials.