HSS white double end twist drill bit: HR001-1 blcak finished HR001-2 edge ground HR001-3 edge ground tin HSS white double end twist drill bit:HR001-1 blcak finishedHR001-2 edge groundHR001-3 edge ground tin coatedHR001-4 fully ground brightHR001-5 fully ground black finishedHR001-6 fully ground tin coated Size(mm): 1-20mmDIN338, DIN340, DIN345, DIN1897Packing: Inner: PVC bagOuter: Cartonother ...