177 DRILL BIT SET 30PC H.S.S Drill Size:1.5mm x2pc, 2mm ... star) & 6150 chrome vanadium steel (slotted,phillips,square,hex,) Finish:sanding finish24pc 50mm Screwdriver bits Size ... & 6150 chrome vanadium steel (slotted,phillips,square,hex,) Finish:sanding finish18pc Nut driver socket Size ... & 6150 chrome vanadium steel (slotted,phillips,square,hex,) Finish:sanding finish1pc Aluminium alloy bits holder4pc ...