Which tools is this open-end insert compatible with?

You use this insert head on torque wrenches with a 14x18 mm rectangular receiver.

What is the size of this insert wrench?

This open-end insert wrench has a wrench size of 45 mm.

How is the insert head secured to the torque wrench?

The insert locks firmly into place using a spring-loaded retractable pin in the rectangular drive.

When is an open-end insert tool most useful?

The open-end design is ideal for tightening fittings on pipework, tubes, and hydraulic lines where a box end cannot slip over.

Do you need to recalculate torque when using an insert head?

If the insert changes the effective calibration length of the torque wrench, you must recalculate the torque setting.

BAHCO 147-45 socket spanner with rectangular connection 14x18 mm, 45 mm

Name: BAHCO 147-45 socket spanner with rectangular connection 14x18 mm, 45 mm
Brand: BAHCO
SKU: 03182879
Price: 201.8 EUR
Availability: PreOrder

Supplier number: BAHCO 147-45 | EAN 7314150366866

Recommended Retail Price €329.91

201.80 tax incl.

€166.78 excl. VAT (incl. all environmental contributions)

On order: delivered from 16/10/2026

Ordered before 20:00 - delivered as of 16/10/2026
Free shipping
Delivery by DHL

✆ Talk to a specialist

Reliable torque application in tight spaces

Practical benefits

Precise Bahco open end: You can easily access 45 mm fasteners where standard sockets cannot fit over pipework.
Secure pin retention: The spring-loaded retractable pin locks firmly into any torque wrench with a 14X18 mm receiver.
High torque transmission: Built for demanding assembly tasks, it delivers dependable strength under heavy mechanical loads.

In a nutshell

The right choise for

With the Bahco 147-45 open-end insert wrench, you tighten large fasteners with accurate torque where standard sockets and ring wrenches cannot reach. The 45 mm open-jaw profile slides effortlessly over pipework, tubes, and hydraulic fittings. Thanks to the 14X18 mm rectangular drive, the insert locks securely onto your torque wrench using a spring-loaded retractable pin. This ensures dependable torque transmission and precise control during heavy mechanical assembly and industrial maintenance tasks.

Product information FAQ

€201.80

tax incl.

Key features according to our expert

Width across flats: 45 mm
Connection size (wrench): 14 x 18 mm
Connection type (wrench): External rectangle

Product description:

Open-ended metric spanner with rectangular connector

Features:

The insert is secured to the torque spanner with a spring-loaded retractable pin
The range varies from 9 x 12 to 27 x 36 holders, from 7 to 90 mm openings and from 9 to 3000Nm
For sizes with * in the torque length, the torque setting must be calculated
Suitable for 7465, 74W9, 74W14, 74P9, 74P14, IZO-D, TAW9, TAW14, TAW24, TAWM9, TAWM14 and TAWM24 spanners

All Features

Width across flats: 45 mm
Connection size (wrench): 14 x 18 mm
Connection type (wrench): External rectangle
Diameter inch: 45 in
Weight g: 490 g
Working length mm (l): 45 mm
Length of square mm: 18 mm
Head width mm (d): 90 mm
Width mm (b): 87 mm
Total length mm (a): 92 mm
Length and width of square mm: 14x18 mm
Height mm (h): 14 mm
Weight kg: 0.49 kg
Max torque range nm: 360 N·m
Length mm: *50 mm
Width of square mm: 14 mm
Diameter mm: 45 mm

Brand BAHCO
03182879
EAN 7314150366866
Supplier number BAHCO 147-45

Frequently asked questions about this product

Answered by specialists

Which tools is this open-end insert compatible with?: You use this insert head on torque wrenches with a 14x18 mm rectangular receiver.
What is the size of this insert wrench?: This open-end insert wrench has a wrench size of 45 mm.
How is the insert head secured to the torque wrench?: The insert locks firmly into place using a spring-loaded retractable pin in the rectangular drive.
When is an open-end insert tool most useful?: The open-end design is ideal for tightening fittings on pipework, tubes, and hydraulic lines where a box end cannot slip over.
Do you need to recalculate torque when using an insert head?: If the insert changes the effective calibration length of the torque wrench, you must recalculate the torque setting.