Set comprises 6-sided TRX-P* and 5-sided security TRX-TS* bits manufactured from S2 steel. TRX-TS* bits are suitable for a range of applications such as fuel injection pumps and air conditioning units. Includes 1/4"Sq x 1/4" Hex, 3/8"Sq x 10mm and magnetic quick chuck bit adaptors. Supplied in storage case. Features: • One of a comprehensive range of Premier Hand Tools, suitable for daily professional use • Comprises 6-sided TRX-P* and 5-sided security TRX-TS* bits manufactured from S2 steel • TRX-P* fixings are now commonplace on new European vehicles such as Renault, Vauxhall, Citroen and Peugeot • If a TRX-Star* bit is used on a TRX-P* fixing it can result in damage to the fastener and tool. Using the correct bit gives greater torque and minimizes wear • TRX-TS* bits are suitable for a range of applications such as fuel injection pumps and air conditioning units • Includes 1/4"Sq x 1/4" Hex, 3/8"Sq x 10mm and magnetic quick chuck bit adaptors • Con