... No. SM8100400 - 400pcs combination drill set -21pc titanium coated HSS drill bits: 1.0, 1 ... 9.0, 9.5, 10.0mm- 21pc HSS twist drills set: 1.0, 1.5, 2.0, 2.5, 3. ... 9.0x2, 9.5x2, 10.0x2 -40pc 50mm screwdriver bit: 7pc slotted: 3, 4, 5, 5.5, 6, 7, 8mm ... , T27, T30, T40, T45 3pc square: #1, #2, #3 7pc metric hex: H2, H2.5, H3, H4, H5, H6, H7 ... 1pc extension holder Item No. SMD8100400 -400pc combination drill set