Dewalt DT70739T FLEXTORQ Screwdriver Bit Set with Optimised Tip Geometry for full fitment in the fastener and reduced cam-out The Dewalt DT70739T is a Screwdriver Bit Set designed for use with Impact Drivers. The 31 Piece FLEXTORQ Set is made up with a mixture of 25mm and 57mm long Bits and a Magnetic Bit Holder with Torsion Zone. FLEXTORQ Bits are designed with a torque zone to absorb the highlights in the torque, allowing optimal bit flexibility and a longer life in demanding applications. They are stored in a Connectable Tough Case compatible with the TSTAK System via the Caddy and Large Tough Case. Contoured area of the bit flexes with the torque of the impact driver to absorb torque peaks and protect the bit for longer life DEWALT branded torsion zone Includes a torsion zone bit holder for use with 25mm screwdriver bits Longer life on 25mm bits when used in a torsion zone bit holder Small Tough Case Connectable Case allows multiple sets to be stacked and locked together TSTAK compatible to hold all your accessory sets in one place Compatible with the TSTAK system via the Caddy and Large Tough Case Easy bit removal and retention for user convenience Bits lock into place to prevent them falling out when not in use Extreme Impact Ready Optimised Tip Geometry for full fitment in the fastener and reduced cam-out Full-fit head eliminates wobble and screw head rounding CNC Machined Optimised Torsion Zone for greater bit strength and longer life Optimised torsion zone maximises bit life and turning force even in the most demanding applications Contains: 2 x PH2 25mm 1 x PH3 25mm 1 x PZ1 25mm 7 x PZ2 25mm 1 x PZ3 25mm 1 x T20 25mm 1 x T25 25mm 1 x PH1 57mm 3 x PH2 57mm 1 x PZ1 57mm 7 x PZ2 57mm 1 x PZ3 57mm 1 x T20 57mm 1 x T25 57mm 1 x T30 57mm 1 x Magnetic Bit Holder with Torsion Zone