... -90 Degrees 3.Made of Carbide, HSS, HSS-Co Drill bits, center drill bitsCutting diameter: 1.0mm-5.0mm with length 30mm-70mmDegree ... End Mill, Corner Radius End Mill, Roughing End Mill, Twist Drill, Center Drill, Spotting Drill, Saw Blade, Reamer, Side & Face Milling Cutter, T-slot ... Rod, Tool Bit, Carbide Tip, Ejector Pin, Punch, Mold Etc. Center Drill Bits Made of Carbide and HSS and HSS-Co