Bit-Check 30 Impaktor 2. 30-piece kit. Includes 29 Impaktor 25mm long bits and the 1/4" drive Impaktor bit holder. The impaktor bits are compatible with impact drivers and reduce the risk of bit breakage due to the special tempering process. The diamond coated screw head bites into the screw; preventing slip-out; requiring less pressure and reduces fatigue. Kit contains: Series 897/4 Impaktor R. Cushions impact pulses from impact screwdrivers by means of a double torsion spring. Equipped with a strong magnet to hold screws. Overall length 75mm. Compatible with 1/4" drive DIN ISO 1173-C 6.3 bits. Series 851/1 IMP DC - Phillips Impaktor bits. 1/4" drive. 25mm long. Color coded for head style (Red = Phillips) and printed for size. Incl. 2xPH1; 3xPH2; 2xPH25. Series 855/1 IMP DC - Pozidriv Impaktor bits. 1/4" drive. 25mm long. Color coded for head style (Black = Pozidriv) and printed for size. Incl. 2xPZ1; 3xPZ2; 2xPZ3. Series 867/1 IMP DC - Torx® Impaktor bits. 1/4" drive. 25mm long. Diamond coated screw head to prevent slipping. Compatible with impact drivers. Color coded for head style (Green = Torx®) and printed for size. Incl. 1xTX10; 1xTX15; 2xTX20; 3xTX25; 2xTX30; 2xTX40. Series 840/1 IMP DC - Hex Impaktor bits. 1/4" drive. 25mm long. For socket head bolts. Color coded for head style (Blue = Hex) and printed for size. Incl. 3; 4; 5; 6.