Generic Step Drill Bit Set, 5PCS High Speed Steel HSS Four Flute Spiral Step Drill Bits with Hex Shank for Stainless Steel, Aluminum, Wood and Plastic Drilling

Product description Specification: Item Type: Step Drill Bit Set Material: High Speed Steel (HSS) Shank Type: Straight (1/4in and 3/8in hex shank compatibility) Slot Type: Spiral, four flute design Step Length: 3/16in-1/2in (6 steps) in (13 steps) 1/4in-3/4in (9 steps) 3/16in-7/8in (12 steps) 3/16in-1-3/8in (19 steps) How to Use: Direct installation and use packing list: 5 x Drill Bits 1 x Storage Box Manufacturer Contact Information 1

• [ Size Markers] Each step drill bit features clearly etched size markers that remain visible after prolonged use eliminating guesswork during drilling. the balanced design and cutting edges ensure smooth effortless drilling with professional grade accuracy every time.
• [Premium Durable Construction] Crafted from high speed steel (hss) with a long lasting nitriding coating this five piece set offers exceptional hardness wear resistance and durability. each bit maintains sharpness through repeated use making it ideal for demanding drilling applications.
• [Versatile Complete Set] This comprehensive step drill bit set includes five bits with diameter ranges from 3/16in to 1 3/8in covering 6 to 19 steps per bit. featuring 1/4in and 3/8in hex shanks they work with most electric drills and impact wrenches. the set comes in a sturdy blow molded toolbox for easy storage and portability.
• [High Performance Drilling] The four flute helical step drill bit outperforms standard double flute designs delivering maximum cutting stability chip removal and extended bit life. its upgraded construction minimizes swing and heat buildup ensuring cleaner holes and unmatched even on materials like stainless steel and hardened metals.
• [Multi Material Compatibility] for drilling stainless steel copper aluminum wood plastic and carbon steel. whether you're tackling home improvement projects automotive repairs or electrical installations these step drill bits are essential tools for diy enthusiasts professionals and tradespeople alike.