Industrial Tools
Torque Systems

Sturtevant Richmont SDRT dovetail head

Common Centre Line 1 7/16 inch (~36.5 mm)

Interchangeable Square Drive Ratchet Head for Dovetail Torque Wrenches

 

Reversible 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.

 

Key Features

 

  • Square drive acc. to DIN3120A
  • R/L reversible via slide pin
  • SR dovetail connector with outstanding rigidity and wear resistance
  • Centre Line 1 7/16 inch (~36.5 mm)
  • Alloy Steel, black finished, partially chrome plated

 


 

Hold & Drive Ratchets (DH)

 

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 (SLP)

 

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 (SBR)

 

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

 


 

Ratchet Renewal Kits

 

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.

 

  • 816998 = RRK-1/4 Renewal Kit for 809504
  • 816958 = RRK-3/8 Renewal Kit for 809505
  • 816956 = RRK-1/2 Renewal Kit for 809506
  • 816959 = RRK-3/8 Renewal Kit for 853395
  • 816957 = RRK-1/2 Renewal Kit for 809508

 


 

NATO approval (NSN)

 

  • 809504 = 5120-01-394-4265
  • 809505 = 5120-01-394-4263
  • 809506 = 5120-01-394-4264
SDRT – w ball retainer
Model Item No. Sq Drv [inch] max Torque [lbf·in] max Torque [N·m] Centre Line [mm]
SDRT 1/4 R 809504 1/4 250 28 36.5
SDRT 3/8 R 809505 3/8 1250 141 36.5
SDRT 1/2 R 809506 1/2 2500 282 36.5
SLRP – w socket lock pin
Model Item No. Sq Drv [inch] max Torque [lbf·in] max Torque [N·m] Centre Line [mm]
SLRP 1/4 R 853304 1/4 250 28 36.5
SLRP 3/8 R 853305 3/8 1250 141 36.5
SLRP 1/2 R 853548 1/2 2500 282 36.5
SBR – small body ratchet w larger drive size
Model Item No. Sq Ddrv [inch] max Torque [lbf·in] max Torque [N·m] Centre Line [mm]
SBR 1/4 w 3/8 R 853752 3/8 250 28 36.5
SBR 3/8 w 1/2 R 853395 1/2 1250 141 36.5
SBR 1/2 w 3/4 R 809508 3/4 2500 282 36.5
SDRT-DH – w hole for hex key
Model Item No. Sq Drv [inch] Hole [inch] Hex Key [inch] max Torque [lbf·in] max Torque [N·m] Centre Line [mm]
SDRT 1/4 DH125 R 853619 1/4 1/8 3/32 250 28 36.5
SDRT 1/4 DH140 R 853590 1/4 9/64 1/8 250 28 36.5
SDRT 3/8 DH125 R 853656 3/8 1/8 3/32 1250 141 36.5
SDRT 3/8 DH156 R 853246 3/8 5/32 1/8 1250 141 36.5
SDRT 1/2 DH156 R 853364 1/2 5/32 1/8 2500 282 36.5

All specifications without guarantee, errors and omissions excepted.

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