3 pcs 4-12/20/32mm HSS Step Spiral Groove Step Cone Drill Hole Cutter Bit
$ 105.29
1The step drill bit is made from high speed steel of high hardness and good wear resistance. 2Surface is coated which give the drill bit a beautiful color and will not fade easily. 3Can be used for drilling a wide range of hole sizes from 4mm to 32mm. 4It is most commonly used on softer materials such as thin iron sheet, aluminum, PVC and wood board within 5mm or thinner. 5Can be installed in table drill and electric hand drill, if for electric hand drill, the recommended power is more than 550W
