Faithfull 16 Piece Impact Long Bit SetThe Faithfull 16 piece Impact Long Bit Set features PH1, 2 & 3 and PZ 1, 2 & 3 bits which come in 75mm and 150mm sizes. They have increased torsion zones and shock flex due to their longer length. They are manufactured from a unique material specially engineered for extreme durability giving them an increased working life compared to standard bits. Each bit features a precision machined tip to provide an optimal fit helping to prevent screw stripping