Welcome to G.W.Y., Inc.

Since our beginning in 1976 we have become a global leader specializing in the sale, rental and repair of TC Wrenches for Tension Control Bolts (T C Bolts) and Electric Torque Wrenches and Torque Multipliers for the installation of standard Hex Head ASTM A325 & A490 structural bolts. We are recognized for quality, dependability, application expertise, as well as:
  • Same day service
  • A large inventory available for sale & rental
  • A large parts inventory
  • Parts for all Makita & Tone wrenches
  • Worldwide sales
To place an order, or for additional information,
contact G.W.Y. customer service at:
P.O. Box 293; 217 Forest Road, Greenfield, NH USA 03047
Toll-free: 1-888-838-6500
tel: 603-547-3800
fax: 603-547-3801
email: gwynne@gwyinc.mv.com
TC Wrenches | Electric Torque Wrenches / Torque Multipliers | Rentals & Service