3PCS M35 Cobalt Step Drill Bit for Metal 1/8"-7/8" (34 Step), Three Spiral Flute Step Drill Bit Set & Automatic Center Punch, 1/4" Hex Shank Industrial Grade HSS Unibit Drill Bit for Wood

1.34 Sizes Comprehensive Drill Bit Set: Our 4-piece step bit set caters to diverse drilling needs, with diameters ranging from 1/8" to 1/2" (13 steps), 1/4" to 3/4" (9 steps), 3/16" to 7/8" (12 steps), 2.Quick Release & Tapered Edge Design: The 1/4" hex shank and quick-release slot ensure secure connections and easy changes. 3.M35 Cobalt Superhard High Speed Steel :Hakkin step drill bit is made of m35 steel. M35 steel is a kind of high speed steel containing cobalt, which has the characteristics of high wear resistance, high pressure resistance and sintering resistance. Ideal for steel and plastic drilling with high-speed cordless drills.

• 1.【M35 Cobalt Superhard High Speed Steel - Extreme Durability】Hakkin step drill bit is made of m35 steel. M35 steel is a kind of high speed steel containing cobalt, which has the characteristics of high wear resistance, high pressure resistance and sintering resistance. Ideal for steel and plastic drilling with high-speed cordless drills
• 2.【34 Step Size】Hakkin step drill bit ranges from 1/8"to 7/8", including 34 sizes: 1/8"-1/2"(1/8",5/32",3/16",7/32",1/4",9/32",5/16",11/32",3/8",13/32",7/16",15/32",1/2".); 1/4"-3/4"(1/4",5/16",3/8",7/16",1/2",9/16",5/8",11/16",3/4"); 3/16"-7/8"(3/16",1/4",5/16",3/8",7/16",1/2",9/16",5/8",11/16",3/4",13/16",7/8"). 1/4"Hex Shank Drill, quick release slot to eliminate slipping
• 3.【Industrial-Grade Construction】Industrial-grade construction ensures durability and longevity, making it a reliable tool for professional tradespeople and DIY enthusiasts alike.Attention: Please wear a mask and goggles when using drill bits to avoid accidents. Using the corresponding drill bit in different scenarios can increase the lifespan of the drill bit. Please choose the drill bit that is suitable for your own work
• 4.【Quick Release & Tapered Edge Design】The 1/4" hex shank and quick-release slot ensure secure connections and easy changes, provides a secure and stable connection to your power tools
• 5.【Unibit Step Drill Bit Compatibility - Compatible with Various Materials】Hakkin unibit step drill Bit set is able to drill holes of a variety of diameters quickly and smoothly, drilling through stainless steel; metal sheet; iron; aluminum sheet; copper; wood; plastic and more (the board must be thinner than the height of the step drill). If for any reason you are not fully satisfied with your purchase, please contact us freely