V-COIL - M52 x 3mm - Rapid Insert Tool with Hexagon Drive. This tooling has been manufactured by VÖLKEL and is part of the V-Coil brand, with 100 years of experience in manufacturing screw taps, VÖLKEL has become one of the worldwide leading suppliers for threading tools. Application area: to insert the thread insert into a new thread by machine with 1\/4 or 1\/2 Hexagon Drive Application: screw insert on installation tool wind the Insert in This is not a stock item therefore please allow 1-3 working days for dispatch. As this is not kept as a stock item, this is non-returnable & non-refundable. V-COIL - M52 x 3mm - Rapid Insert Tool with Hexagon Drive