Beginning BITMAN Ultra PH2-PH2 Double Impact Bit Set - 10 Pieces BITMAN BPH2D10-UT Professional 10-piece PH2-PH2 double impact bit set manufactured from HRC63 high-hardness steel. Features dual torsion zone, Exact Fit precision tip and magnetic design for maximum performance with impact drivers. Includes 3×65 mm, 2×82 mm, 3×110 mm and 2×150 mm bits in a durable storage case. View