TOJOIN 5/16" SMA Torque Wrench for RF Connector 0.9 N·m Opening 8mm for SMA 3.5mm/2.92mm Adapter Convertor Portable Spanner for Professionals Industry : Amazon.co.uk: DIY & Tools
Seekonk Click Type Torque Wrench Clamp-all 125 in.lbs. 5/16" socket
T Torque Wrench, 5/16 in Cap, 60 in lb : Amazon.co.uk: DIY & Tools
Jones Stephens Mega Torque Wrench, 80 lb. - 5/16" Socket : Amazon.co.uk: DIY & Tools
SMA Torque Wrench 5/16" | eBay
Wera 7774/3 Click Torque X 5/16'' Hex Bit Adaptor Insert - Machine Mart - Machine Mart