Compact, flat design for convenient storage in drawers and tool cabinets. Molded ABS resin case holds up to rigors of daily use. Easy-to-read size markings provide simple identification of set contents. Easy-to-use sliding latch design keeps case securely closed when not in use. Holds (30) 1" insert bits and a bit holder. 1" Includes Impact Insert Bits: PH1 (2), PH2 (4), PH2-Drywall (2), PH3 (2), SQ1 (2), SQ2 (4), SQ3 (2), T10, T15, T20 (2), T25 (4), T27, T30 (2), T40, Impact Magnetic Bit Holder with C-Ring 2-1/4".