Everyday Safety Every Day - Angle Grinders

Did You Know?

Over 5,000 injuries occur each year from angle grinder incidents — many involving serious eye or hand trauma. ^[2]

KNOW THE RISK

• Angle grinders are powerful handheld tools used to cut, grind, and polish metal, stone, or concrete. They can be extremely dangerous when misused or poorly maintained.
• Discs can shatter unexpectedly, sending debris flying at high speed, leading to eye injuries, facial lacerations, or worse.
• Improper use can result in severe injury, including blindness, deep cuts, or even death. Many injuries occur due to kickback or the disc breaking apart during operation.
• 9" angle grinders are especially hazardous, with higher torque and more violent kickback. Many safety agencies recommend avoiding them unless absolutely necessary.

MITIGATE THE RISK

1. Use Smaller Grinders When Possible

• Avoid 9" grinders unless absolutely necessary. Opt for smaller, lower-torque models that are easier to control.

2. Inspect Before Use

• Ensure the guard and handles are securely in place, and inspect the disc for cracks or defects before starting the grinder.

3. Let It Reach Full Speed

• Allow the grinder to reach full operating speed before applying it to the workpiece. This reduces the chance of kickback or disc failure. ^[2]

4. Use Proper Technique and PPE

• Never operate a grinder between your legs or near your body. Always wear impact-rated eye protection, gloves, long sleeves, and hearing protection.

TOOL SAFETY REMINDER

Angle grinders are deceptively powerful — and dangerous when used carelessly. Choose the right size, inspect carefully, and always use guards and PPE. A small mistake can lead to a life-changing injury.

References

1. SafeWork SA – Angle Grinder Safety
2. ScienceDirect – Angle Grinder Injuries