BS ISO 9343:2021

What is ISO 9343 – Dimensions for slip joint pliers about?

ISO 9343 is an International Standard that discusses hand-operated tools such as pliers and nippers.

ISO 9343 specifies the principal dimensions of slip joint pliers, designated as No. 206 in ISO 5742, and the test values, in order to verify their aptitude to function in conformity with ISO 5744. The general technical requirements are given in ISO 5743.

Note: The slip joint pliers illustrated in ISO 9343 are examples only and are not intended to affect the manufacturer's design.

Who is ISO 9343 – Dimensions for slip joint pliers for?

ISO 9343 on the dimensions for slip joint pliers is useful for:

• Plier and nipper manufacturers
• Slip joint plier manufacturers
• Product designers
• Mechanical engineers
• Quality control and inspection bodies

Why should you use ISO 9343 – Dimensions for slip joint pliers?

For desired performance and functional efficiency, it is essential that slip joint pliers meet best industry requirements when it comes to its design, for adequate jaw opening and grip.

ISO 9343 walks you through the principal dimensions and load test values for slip joint pliers along with the appropriate designation and marking.

If you are a manufacturer of slip joint pliers, complying with ISO 9343 can ensure your products are reliable and effective for use.

What’s changed since the last update?

BS ISO 9343:2021 is the third edition that replaces the second edition i.e ISO 9343:2004 that has been withdrawn. As compared to the previous edition, BS ISO 9343:2021 now introduces the minimum and maximum lengths for each nominal length.