Meeting your various drilling demand! Not only our special profile drill bits perfectly cut specific material you may need, but also our standard Harlingen drill bits can cut the most popular used material with excellent cutting results even for the hard-to-drill stainless steel (mostly can only be cut well by M35 cobalt HSS drill). Please see below testing pictures which also can be served as your own checking reference.
Fully covered quality controlling. In our newly invested workshop, we carry out every manufacturing procedure in house under our own control maintaining our standard steel making furnace, computer-controlled heat treatment device, special tempering equipment, traditional forging procedure, up-to-date drill-making machine. Being an ISO9001:2008 certified company, we make full test from raw material (each batch) made by ourselves.