Industrial Tools
Torque Systems

Sturtevant Richmont S-SDRT

Common Centre Line 98.4 mm

Reversible ratchet interchangeable head with 3 7/8" center line


Interchangeable reversible square drive ratchet head with SR dovetail design. Ideal when a socket is to be used and there is significant rotation of the fastener required to complete the tightening. Suitable for Sturtevant Richmont torque wrenches CCM-400NM and CCM-600NM or series LTC.


The unique SR dovetail design used to join head and wrench provides an exceptionally strong connection and allows complete interchangeability. The SR system contributes to both operational flexibility and enhancing your return on investment!


To achieve constant torque values when changing heads, exact lever length must be maintained. Virtually all SR heads share a precise distance from end of wrench to center of fastener. This is referred to as a “Common Center Line” and is very difficult to maintain using the cut and weld construction method.




  • Square drive acc. to DIN3120A
  • R/L reversible via slide pin
  • SR dovetail connector with outstanding rigidity and wear resistance
  • Centre line 3 7/8 inch
  • Alloy Steel, black finished, partially chrome plated


Ratchet Renewal Kit


Ratchet Renewal Kits range in size from 1/4 inch drive up to 3/4 inch drive. In addition to a new spindle, the kit includes a reversing pin, washer, retaining ring, spring, and ball.


  • 816999 = 3/4" Renewal Kit for 809507
Model Item No. Sq.drv
SDRT 3/4 R809507 3/4 4800 542 134.9 73.0 31.8 38.1 25.4
All specifications without guarantee, errors and omissions excepted.

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