The Amazing Carbide Burr

As it happens, I decided to pre-drill the holes with a 4mm carbide spot drill that I had on hand, the spindle was perfectly happy pushing that

Solid Carbide Slot PCB Drill Shank = Ø 3175mm d = 0,60mm l1 = 38,20mm l2 = 7,0mm Helix Angle = 30° Point Angle = 130° Slot drills are designed especially

carbide t slot milling cutter CBN 2 FLUTE 30 DEGREE HELIX BALL END MILL · CBN 2 FLUTE 30 DEGREE HELIX CORNER RADIUS END MILL GENERAL PURPOSE; HSS · COBALT · CARBIDE · DRILLING INSERT

carbide t slot cutter Slot drills