300 pcs combination drill set different kinds of drill bits for widely used 300pcs combination drill setSpecifications:7 pieces HSS twist drill: 2.0, 3.0, 4.0, 5.0, 6.0, 8.0 and 10.0mm 5 pieces wood working drill: 4.0, 5.0, 6.0, 8.0 and 10.0mm5 pieces masonry drill: 4.0, 5.0, 6.0, 8.0 and 10.0mm6 pieces bits1 piece magnetic holder276 pieces gray fish wall plug: 4.0, 5.0, 6.0, 8.0 and 10. ...