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Details

Part of a System of Access Wrenches

Tekton service wrenches are short-handled, open end access wrenches with a 15-degree angled head on one side and a drive square on the other. They complement our other access wrenches, including crowfoot, flare nut crowfoot, and angle head wrenches.
A service wrench on a hydraulic line.

Ideal for Hydraulic Lines

The short handle of the service wrench improves access to hydraulic fittings in tight spaces where a regular combination wrench won't fit. The drive square at the end of the handle adds versatility when paired with a ratchet or a torque wrench.
Top and side views of a Tekton service wrench with specific areas of wrench labeled.

Service Wrench Design Features

A. Tapered Tips
A 10º lead-in taper on both of the tips helps the jaws fit over painted, dirty, or corroded fittings.


B. Tight Jaw Tolerances
Wrenches are cut from plate steel and then CNC milled on every surface, including the jaws. The final jaw tolerances are more exact than the ASME standards.


C. 15º Angled Head
The head is turned to a 15º angle, rather than the conventional 30º, to offer optimal access positions on a hex fitting.


D. Uniform Finish
The surface of the wrench is abrasive-blasted to create a smooth satin texture. The nickel finish is uniformly applied using an electroless plating process.


E. Strong, Well-Proportioned Handle
The non-tapered handle has a uniform thickness, a 45º outside chamfer, and a finger pocket on both sides for a more comfortable and secure grip.


F. Pommel
The pommel at the end of the handle keeps your hand from slipping off and is rounded for comfort.


G. Drive Square
The drive square can be used with a ratchet or other drive tools to increase access or leverage and apply specific torque. Four detent grooves secure the connection.


H. Engraved Torque Adapter Measurement
The distance between the center of the drive square and the center of the hex fastener is engraved on the handle for quick reference when using the wrench as a torque adapter.

Drive Square Capabilities

A ratchet connected to the drive square in the handle of a Tekton service wrench.

Secure Retention for Drive Tools

Detent holes on all four sides of the drive square give drive tools a secure hold in any position. Use a drive tool with a quick-release mechanism for optimal retention.
Wrench sizes 3/4–1-1/2 inch and 19–38 mm have a 3/8 inch drive square, and 1-9/16–2-5/8 inch and 41–50 mm have a 1/2 inch drive square.
A long ratchet connected to a Tekton service wrench

Reach Farther and Get More Leverage

A ratchet attached to a Tekton service wrench in order to reach around an obstacle.

Work Around Obstacles at Any Angle

An extension and a ratchet attached to a Tekton service wrench allows you to reach into recessed areas.

Extend Into Confined, Recessed Areas

The point-to-point distance is engraved in the handle.

Torque to Specification

The center-to-center distance between the drive square and the hex opening is engraved on the handle for quick reference when using the service wrench as a torque adapter. Use our Torque Conversion Calculator to apply proper torque when the wrench is set to any angle other than 90º.
NOTE: The service wrench handle will not appear perpendicular to the torque wrench when properly set to 90º, as shown in the illustration.

A 2 inch Tekton service wrench (#WSE14351) is 37% thinner than a 2 inch Tekton combination wrench (#WCB23050)

Thin Jaw for More Access

Our service wrench jaws are much leaner than our standard combination wrenches, with 33% to 46% less jaw thickness (depending on the size). This provides better access in tight spaces and on thin fittings.
Close-up view of the tapered tips of a Tekton service wrench.

Tapered Tips

The tip of each jaw has a 10º lead-in taper that helps align the wrench with the hex flats when visibility is limited. The tapers also help the wrench fit over painted, dirty, or corroded fasteners and fittings.
The tips of the service wrench have a 10º lead-in taper.
Service wrenches hanging on a rod.

4140 Steel, Satin Nickel Finish

We make our service wrenches from 4140 chromium molybdenum steel and harden them to 50–53 HRC. The wrenches are abrasive-blasted to create a finely textured satin finish and then plated with corrosion-resistant nickel that is easy to wipe clean.
Electroless nickel plating has uniform coverageElectroless Nickel Plating
Chrome plating results in plating build-up on the tipsConventional Chrome Plating

Uniform Coverage and Better Fit

Our electroless process applies a uniform nickel coating to the entire tool surface. By comparison, electroplating, including conventional chrome plating, has varying thickness across the tool based on the electric current density at each point on the tool.
Service wrenches being removed from a CNC mill.

Manufactured in Michigan

Our service wrenches are made entirely in the USA with USA-sourced materials. Machining, broaching, engraving, vibration polishing, abrasive blasting, and plating take place at our Grand Rapids, Michigan, manufacturing facility.

Specs

1-1/2 Inch Service Wrench

Specs for 1-1/2 Inch Service Wrench
Country of Origin
United States
Item Weight
0.56 lb.