Deli dh-jtz020-e3 4-20mm silver

size: 4-20mm

Deli DH-JTZ020-E3 step drill bit covers diameters from 4 mm to 20 mm in one tool. It is made from HSS M35 cobalt steel for drilling stainless steel and hard alloys. The hexagonal shank keeps the bit firmly seated in the chuck. Overall length is 76 mm with a 52 mm working length. An optimized spiral flute clears chips quickly, and an anti-corrosion coating extends service life.