KSEIBI Step Drill Bit Set 5 Pieces Pack High Speed Steel Black Oxide M2 Multiple Hole 50 Sizes 1/8-1-3/8 inch SAE Standard Drill Attachment (KS-575105)

Key features

• These HSS Double-Fluted Step bit kit provide faster cutting and drilling than single flute bits. The easy-to-read step markings and targets save time when drilling holes.
• Drills clean, accurate large holes in these materials (up to 1-3/8in. diameter) hard sheet metal, ducts, steel, stainless steel, copper, brass, aluminum, plastic, plexiglass, wood, firewood, veneers, vinyl siding, acrylic, plasterboard, PVC pipe, , fiberglass and cast iron, Ideal for electrical, plumbing and HVAC contractors.
• M2 high speed steel along with the black coating ensures extreme durability, will stay new and shiny for years to come. Different sized shanks ensure compatibility with 3-Flat Hex Shank - Prevents bit from slipping in the chuck while drilling holes 1/4, 3/8 and 1/2 in. chuck size.
• Step drill bit can be used on electrical drill, cordless drill, or high impact drill press machine, combo set with durable ABS plastic organizer for easy and safe storage in your tool box.
• Dual-flute design provides greater speed and control and optimized for cordless drills driver running at high speed