... 2.60-90 Degrees 3.Made of Carbide, HSS, HSS-Co Drill bits, center drill bitsCutting diameter: 1.0mm-5.0mm ... with length 30mm-70mmDegree: 60-90Material: tungsten carbide, HSS, HSS-Co (m42, m35, m2)Tin coated, bright finishWe also can supply ... Pin, Punch, Mold Etc. Center Drill Bits Made of Carbide and HSS and HSS-Co