Four Spiral Flute M35 Cobalt Step Drill Bit Set 1/4" - 1-3/8"(19 Sizes), Impact

Widely Used: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 If the breaks, refund or replace for 100% . 13 Sizes Including:the bit contains sizes ranging from 1/8” to 1/2”. M35 Cobalt Superhard High Speed Steel: ISI M35/1., 3243/SKH55/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. M35 Cobalt Step Drill Bits Four Spiral Flute M35 Cobalt Step Drill Bit Set 1/4" - 1-3/8"(19 Sizes), Impact Step Drill Bit For Metal CoM35 HSS: Made from cobalt M35 high speed steel, ensuring toughness and tensil strength to handle hard material M35 step drill compatibility ： step drills can quickly and smoothly drill holes of different diameters, such as stainless steel, aluminum, wood, plastic board (the board must be thinner than the height of the step drill) PANOVOS FOUR SPIRAL FLUTE STEP DRILL BIT These Double-Fluted Step Drill Bits providefaster cutting and drilling than singlo flutobits. 1/8 - 1/2 Four Spiral Flute Cobalt Step Drill Bit Set M35 four spiral groove: step drill four cutting blade design.