... &Deburring Tools ,According to DID standard ,straight shank. HSS zero Flute Countersinks&Deburring Tools ,According to DID standard ,straight shank&taper ... -10,10-15,15-20mm,with metal case5pcs/set:1-4,2-5,5-10,10-15,15-20mm,with wooden ... box5pcs/set:0#,1#,2#,3#,4# with wooden box8pcs/set:0#,1#,2#,3#,4#,5#,6#,7#,8# with wooden ...