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Sealey STW903 Torque Wrench 3/8"Sq Drive 20-120Nm Micrometer Style Calibrated

Product Number: STW903

£78.61 £77.04

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Variations

3/4" Drive, 100-600Nm

Undertightened fasteners work loose; overtightened ones strip threads or crack components. Neither is acceptable in a professional workshop. The Sealey STW903 is a micrometer-style torque wrench with a 3/8" square drive and a range of 20-120Nm (14.8-88.6lb.ft), giving precise, repeatable torque application across a wide variety of tasks. The flip-reverse Chrome Vanadium steel ratchet head delivers smooth action in both directions, while the scale is graduated in both Nm and lb.ft for versatility. At 420mm in length, it offers the leverage needed for confident use. Calibration meets BS EN ISO 6789-1:2017 standards with ±4% accuracy, and every wrench is individually tested and issued with its own numbered test certificate essential documentation for professional and regulated environments. The aluminium knurled handle provides comfort and control during extended use, and the wrench is supplied in an EVA tray for safe storage. Backed by a lifetime guarantee, the STW903 is part of Sealey's Premier Hand Tools range, built for daily professional use.

Key Features:

Sealey STW903 Torque Wrench 3/8 Sq Drive is presented as a model-specific workshop product, description and specifications for accurate catalogue use.
Key technical details include nett weight 0.925kg, length 420mm, drive 3/8"Sq Drive, giving buyers clear specification data for accurate selection and comparison.
Safety-focused design includes a ratchet locking mechanism that helps prevent accidental release, helping users maintain control during setup, operation and handling.
It is suited to vehicle servicing, repair bays and maintenance tasks where dependable support or lifting is required, matching the product title and supplied description.
A key selling point is backed by a lifetime guarantee, giving this model a clear product-specific advantage for buyers comparing similar workshop options.
Operational details include range 20-120Nm (14.8-88.6lb.ft), supporting product setup, handling and internal catalogue accuracy for everyday workshop use.

About PartsForMachines:

PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.

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Model No	STW903
Brand	Premier
Drive	3/8"Sq Drive
Length	420mm
Nett Weight	0.925kg
Range	20-120Nm (14.8-88.6lb.ft)

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Engine Parts	Product Number	Product Name	Recommended Units	Product Price

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Standard Delivery: £5.99
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
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Technical Specification
PRODUCT NUMBER	80134000	80130000	80250000	80240000	80105000	80110000	80120000	80002000	80140000	80060000	80070000	SPEEDLINE100	SPEEDLINE200	80250500	SPEEDLINE300
Type	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Click Wrench	Multiplier		Click Wrench	Click Wrench	Click Wrench	Click Wrench
Drive Size (Inch)	1/2	1/2	3/4	3/4	3/8	1/2	1/2	3/8	3/4	1/2		1/2	1/2	3/4	1/2
Length (mm)	50	70	100	100	40	50	50	60	50	120	104	80	80	100	80
Torque Range (Nm)	340	300	1000	800	50	100	200	20	400	1300		100	200	1000	300
Weight (kg)	25	1.7	55	9.1	0.7	94	07	0.4	93	15	41	285	43	55	2

Technical

Q 1. What is the torque range of the STW903?

A. The STW903 has a range of 20-120Nm (14.8-88.6lb.ft).

Q 2. What drive size does the STW903 torque wrench use?

A. The STW903 uses a 3/8" square drive.

Q 3. Is the STW903 torque wrench calibrated?

A. Yes. Each STW903 is individually tested to BS EN ISO 6789-1:2017 standards with ±4% accuracy and is supplied with an individually numbered test certificate.

Q 4. What is the overall length of the STW903?

A. The STW903 is 420mm in length.

Q 5. Does the STW903 read in both Nm and lb.ft?

A. Yes, the scale is graduated in both Nm and lb.ft.

Q 6. What is the ratchet head on the STW903 made from, and can it reverse direction?

A. The ratchet head is manufactured from Chrome Vanadium steel and features a flip-reverse mechanism with a smooth action, allowing use in both directions.

Q 7. What handle does the STW903 have?

A. The STW903 features an aluminium knurled handle designed for comfort and control.

Q 8. How is the STW903 supplied?

A. The STW903 is supplied in an EVA tray. It is also backed by a lifetime guarantee.

Q 9. Are there variants of the STW903 torque wrench available?

A. Yes, STW903B is a variant in the same torque wrench family. Please refer to that product listing or contact Parts for Machines for confirmation of the differences.