Industrial Tools
Torque Systems

Sturtevant Richmont SDRT

Common Centre Line 36.5 mm

Reversible ratchet interchangeable head with 1 7/16" 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.

Sturtevant Richmont offers different ratchets to meet the needs of different industries. In addition to the normal industrial assembly tool ratchets we also offer "Hold and Drive" ratchets for aerospace.

 

Main Features

  • Square drive acc. to DIN3120A.
  • R/L reversible via slide pin.
  • SR dovetail connector with outstanding rigidity and wear resistance.
  • Common Centre Line 36.5 mm
  • Alloy Steel, black finished, partially chrome plated.

 

Hold & Drive Ratchets

Aerospace assemblies sometimes use a special fastener to ensure there are no gaps between surfaces. Sturtevant Richmont creates these ratchets using our existing designs. Holes are precision drilled to ensure flawless use while maintaining structural integrity. Plus you get the benefit of placing this head at the end of many different Sturtevant Richmont torque wrenches. Like all of our heads, our ratchets maintain the common centerline.

 

Socket Lock Pin

When you need additional security with impact sockets ensuring a socket stays on a wrench, the Socket Lock Pin series provides a solid solution. Engineered for strength and built for durability.

 

Small Ratchet Body With Larger Drive Size

These versions are ideal when you need a larger drive square in a smaller ratchet body.

SDRT – w ball retainer
Model Item No. Sq.Drv
inch
Max.Torque
lbf·in
Max.Torque
N·m
A
mm
B
mm
C
mm
D
mm
E
mm
SDRT 1/4 R809504 1/4 250 28 49.2 25.4 12.7 19.1 17.5
SDRT 3/8 R809505 3/8 1250 141 55.6 37.3 17.5 29.4 19.8
SDRT 1/2 R809506 1/2 2500 282 60.3 47.6 22.2 31.8 20.6
SDRT – w socket lock pin
Model Item No. Sq.Drv
inch
Max.Torque
lbf·in
Max. Torque
N·m
A
mm
B
mm
C
mm
D
mm
E
mm
SDRT 1/4 SLP R853304 1/4 250 28 49.2 25.4 12.7 19.1 17.5
SDRT 3/8 SLP R853305 3/8 1250 141 55.6 37.3 17.5 29.4 19.8
SDRT 1/2 SLP R853548 1/2 2500 282 60.3 47.6 22.2 31.8 20.6
SDRT – w larger drive size
Model Item No. Sq.Ddrv
inch
Max.Torque
lbf·in
Max.Torque
N·m
A
mm
B
mm
C
mm
D
mm
E
mm
SDRT 1/4 w 3/8 R853752 3/8 250 28 49.2 25.4 12.7 19.1 17.5
SDRT 3/8 w 1/2 R853395 1/2 1250 141 55.6 37.3 17.5 29.4 19.8
SDRT 1/2 w 3/4 R809508 3/4 2500 282 60.3 47.6 22.2 31.8 20.6
SDRT – w hole for hex key
Model Item No. Sq.Drv
inch
Hole
inch
Hex Key
inch
Hex Key
mm
Max.Torque
lbf·in
Max.Torque
N·m
A
mm
B
mm
C
mm
D
mm
E
mm
SDRT 1/4 h&d 1/8 R853619 1/4 1/8 3/32 2 250 28 49.2 25.4 12.7 19.1 17.5
SDRT 1/4 h&d 9/64 R853590 1/4 9/64 1/8 3 250 28 49.2 25.4 12.7 19.1 17.5
SDRT 3/8 h&d 1/8 R853656 3/8 1/8 3/32 2 1250 141 55.6 37.3 17.5 29.4 19.8
SDRT 3/8 h&d 5/32 R853246 3/8 5/32 1/8 3 1250 141 55.6 37.3 17.5 29.4 19.8
SDRT 1/2 h&d 5/32 R853364 1/2 5/32 1/8 3 2500 282 60.3 47.6 22.2 31.8 20.6
All specifications without guarantee, errors and omissions excepted.

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