Unibit Step Drill bit for Metal, HSS Step bit Set, 1/8"-1-3/8"（5-Piece）

‌ Engineered with four razor-sharp cutting blades, our step drill bit set delivers swift, vibration-free drilling performance. The advanced geometry slices through steel, aluminum, copper and other rigid materials with surgical precision - like a hot knife through butter

Our drill bits are made from robust high-speed steel, which offers exceptional hardness. This allows for faster cutting of harder materials while also withstanding high temperatures and cutting forces, ensuring long-lasting performance

Our 5-piece step bit set caters to diverse drilling needs, with diameters ranging from 3/16" to 1/2" (6 steps), 1/4" to 3/4" (9 steps), 3/16" to 7/8" (12 steps), 1/8" to 1/2" (13 steps), and 3/16" to 1-3/8" (19 steps) 

Features a dual shank with both a 1/4" hex and a 3/8" round shank, enabling quick, easy step-bit changes. Ensures a secure hold without slipping for stable performance. Compatible with most handheld drills and drill presses

Our step drill bits for metal come with a handy storage case, ensuring effortless organization and portability for all your drilling tasks. Clear size markings on each bit allow for quick identification