Choose a disc made for the material and task, such as cutting, grinding or surface preparation. Match its diameter, bore and maximum speed to the grinder and follow both manufacturers’ instructions.
Cutting and Grinding Tools for Metal and Masonry
Angle grinders cut, grind and prepare metal or masonry when fitted with the correct accessory. Disc choice matters as much as tool size, so identify the material and finish before starting.
Check spindle size, guard position and maximum rated speed when selecting cutting or grinding discs. Never fit an accessory with a lower speed rating than the grinder, and do not use a cutting disc for side grinding.
Cutting concrete or mortar can release respirable silica dust. Use suitable on-tool extraction or water suppression where specified, wear the required PPE and follow the task risk assessment. MacBlair also stocks dedicated dust suppression equipment.
Angle Grinders FAQs
A 115 mm grinder is lighter and easier to control for smaller cuts and preparation. A 230 mm grinder offers greater cutting depth but is heavier and requires more working space and control.
Yes, with a compatible masonry or diamond cutting disc and effective dust control. Concrete cutting can create high silica exposure, so use suppression or extraction and suitable respiratory protection as required by the risk assessment.
No. Thin cutting discs are not designed for side loading and can fail if used for grinding. Fit an accessory specifically rated for the operation.
Inspect the disc for damage, confirm its rating and direction, secure the guard and allow the tool to reach speed away from the work. Keep sparks and debris clear of people and combustible material.