... ring screwdriver bit1)material: S2 bits set extension magnetic bar 32pcs bit set with color ring screwdriver bit1.Code:HY ... size:10.5*7-3.5cm3.Net weight for the set:0.302 kg4. Material: S2 or CrV5.surface treatment ... :T10,T15,T20,T25,T27,T30,T401 pcs quick release chuck 1. PACKAGE :colour lable or displybox2. MEAS : 31. ... Q'TY/CNT : 48 set5. Q'TY/20" :61000 set HY-P031C HY-P031DHY-Q015 HY-Q031B 32 pcs S2 ...