Torque Master Tools Private Limited manufactures Square Drive Adaptors with Drive End Diameter 14 to 127 mm. Torque Master Tools Private Limited is an ISO 9001:2000 certified company. The Square Drive Adaptors with Drive End Diameter 14 to 127 mm are used as a converter to permit use of sockets and driving tools to different drive sizes. These are available in various combinations, ¬" Fx3/8"M, 3/8"Fx1/2"M, 1/2"Fx3/4"M, 1"Fx3/4"M, 1"Fx1 «"M and vice versa. These are available for manual as well as impact use. For impact use, provision for locking ring and pin is there. The Square Drive Adaptors with Drive End Diameter 14 to 127 mm is used in Heavy Industries, Thermal Power Plants, Oil Industries, Petroleum, Automotives etc.