[Material]—Our step drill bit is made of m35 steel, which is a high-speed steel containing cobalt. This makes our step drill bit more durable, wear-resistant, and has a hardness of up to HRC64-67. And our step drill bit surface features an industrial-grade Aluminium nitride coating, which makes our drill bit have higher wear resistance, pressure resistance and sintering resistance.
[Four Spiral Flute]— Our step drill bits are equipped with four spiral flutes,The fluted spiral drill-bit design automatically deburrs and expands holes for a cleaner drilling process every time without heating up, just like a hot knife cutting butter.
[34 Step Size] — The size of the 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.
Widely Used: With the cobalt containing material and four spiral flute designs, our drill bit can be suitable for multiple scenarios, and is able to drill holes of a variety of diameters quickly and smoothly, which on materials such as stainless steel, aluminum, wood, plastic board, copper, and other metal sheets.
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.
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