6.8mm HSS COBALT JOBBER DRILL BIT FOR DRILLING HARD METALS STEEL, DIN338
About this deal
Over the past two and a half years I have been using Tilgear for purchasing the tool kits for the Lee Marley Brickwork apprentices. As major international supplier, Dormer insist on its products surpassing all relevant independant performance standards.
HSS-Co cobalt twist drills from Heller are equipped to tackle the toughest drilling jobs in stainless steel and metal. VersaDrive TurboTip Impact drill bits are stepped tip bits that drill at twice the speed of standard bits without the need for pilot drilling while cutting a perfectly round hole. For effective use the increased hole size should be no greater than two thirds of the starting hole size. right-hand cutting twist drill bit, type N, drill bit tip 136 degrees, split point manufactured to DIN 1412 C, diameter tolerance h 8.
However, by default this process will utilise the impact operation (as opposed to rotary only) meaning a possibility of reduced drill bit life. North Berwick High School, East Lothian "All received and mechanical department are happy with the bits. VersaDrive Impact wrench drill bits work by utilising the high torque rotary drive of an impact wrench in a conventional rotary drilling operation. They have a patented hexagon shaped shank that makes them suitable for use with any standard 1/2” drill chuck for cordless or pistol drills.