JCB Grinding & Cutting Discs | 115mm & 125mm Angle Grinder Discs | JCB Tools

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Expert Help & Advice

Grinding & Cutting Discs

Keep your angle grinder working with the right disc for the job. JCB grinding and cutting discs are available in 115mm and 125mm sizes, covering metal cutting, stone cutting and general purpose grinding applications. Packs of 12 provide value for trade use. All discs are M14 thread compatible, matching the JCB angle grinder range. Choose the right disc, check the RPM rating matches your grinder, and always use the correct guard. Standard for professional angle grinder accessories.

Buying Guide

Always match the disc to the material and the grinder. Metal cutting discs are not rated for masonry and will wear prematurely or shatter. Stone and concrete cutting discs are not designed for clean cuts in steel. Disc thickness matters: cutting discs are thin (1-3mm) for fast clean cuts; grinding discs are thick (6-8mm) for removing material from surfaces. Never use a cutting disc for sideways grinding pressure — it is not rated for that loading and can crack or shatter. Always check the disc RPM rating equals or exceeds your grinder's no-load speed. Inspect discs for cracks or chips before fitting and replace immediately if damaged.

Frequently Asked Questions

What is the maximum RPM I should use with JCB cutting discs?

The maximum RPM is marked on the disc label. Always check this rating matches or exceeds your grinder's maximum no-load speed before fitting. Never exceed the disc's rated RPM — a disc spinning beyond its rating can shatter with serious consequences.

How many cuts can I expect from a JCB cutting disc?

Cut count depends on disc size, material hardness and cutting technique. Consistent pressure and straight cuts extend disc life. Twisting or side-loading a cutting disc shortens its life and is a safety risk.

Do JCB grinding discs fit all angle grinders?

JCB grinding and cutting discs use M14 thread which is the standard for 115mm and 125mm angle grinders across all major brands. They are compatible with JCB, Dewalt, Makita, Bosch and other grinders with M14 spindles.