Bit-Check 30 Impaktor 1, 30 pieces 1x 897/4 IMP R Impaktor holder with retaining ring and ring magnet: 1/4", x 75 mm 7x 851/1 IMP DC Impaktor bits: 2x PH 1x25 mm, 3x PH 2x25 mm, 2x PH 3x25 mm 7x 855/1 IMP DC Impaktor bits: 2x PZ 1x25 mm, 3x PZ 2x25 mm, 2x PZ 3x25 mm 11x 867/1 IMP DC Impaktor TORX® bits: TX 10x25 mm, TX 15x25 mm, 2x TX 20x25 mm, 3x TX 25x25 mm, 2x TX 30x25 mm, 2x TX 40x25 mm 4x 840/1 IMP DC Impaktor bits: 3x25 mm, 4x25 mm, 5x25 mm, 6x25 mm1 Impaktor holder with retaining ring and ring magnet, 29 Impaktor bits. The Impaktor technology offers an above-average service life even under extreme circumstances thanks to the best possible utilisation of the material properties and the optimised geometry, particularly suitable for use with customary impact drivers, holder with ring magnet for simple holding of even longer and heavier screws, ideal for overhead work. The rough diamond-coating of the bits reduces the risk of a slipping out of the screw head thanks to the enhanced frictional resistance.