This HiKOKI 102 Piece Set contains an assortment of commonly used drilling and driving bits for common household projects. Contents: 20 x HSS Black Oxide Drill Bits: 1mm(5), 1.5mm(5), 2mm(4), 3mm, 3.5mm, 4mm, 4.5mm, 5mm & 6mm 4 x Carbide Tipped Masonry Bits: 3mm, 4mm, 5mm & 6mm 1 x Countersink Insert Bit 12.7mm 19 x 25mm Phillips Bits: PHO(3), PH1(4), PH2(8) & PH3(4) 11 x 25mm Pozidriv Bits: PZ1(3), PZ2(5) & PZ3(3) 14 x 25mm TORX Bits: T10(2), T15(2), T20(2), T25(2), T27(2), T30(2) & T40(2) 14 x 25mm Slotted Bits: 3mm(3), 5mm(3), 6mm(4) & 6.5mm(4) 3 x 25mm Square Bits: S1, S2 & S3 7 x 25mm Hex Bits: 1.5, 2, 2.5, 3, 4, 5 & 6mm 3 x 50mm Phillips Bits: PH1, PH2 & PH3 3 x 50mm Pozidriv Bits: PZ1, PZ2 & PZ3 2 x 50mm TORX Bits: T20 & T25 1 x 60mm Chrome Plated Magnetic Bit Holder