C`sink and Deburring Tools Countersink set Countersink bit Design:- compiled of countersinks 110110 HSS DIN335 FormC Cat. no. PN/mm2 MN/mm2 KHB SN/mm2 NN/mm2 HSS DIN335 FormC Delivery:In plastic case. 90° Straight UNI 110620110622< 850 < 750 Copper,< 250Titaniumbrass,Alu