How to Use an Angle Grinder Safely: Discs, Guards and Technique (2026)

Oct 12, 2026

Buy More Mall Kenya

The angle grinder is one of the most useful tools in a workshop and one of the most dangerous. It spins a disc at thousands of revolutions per minute; a wrong disc or a missing guard can cause serious injuries in a second. Used correctly, it is safe and fast.

Quick answer: To use an angle grinder safely: (1) use the right disc for the job and rated at or above the grinder’s RPM, (2) unplug before changing discs, (3) keep the guard on and positioned between you and the disc, (4) wear eye and face protection, gloves and ear protection, (5) hold it with both hands using the side handle, (6) clamp the work and let the disc reach full speed before touching it. Grinders start from KSh 4,000 on Buy More Mall.

Angle Grinders on Buy More Mall

Bosch – GWS 700 Professional Angle Grinder. – price in Kenya — Bosch – GWS 700 Professional Angle Grinder.
**KSh 6,990**

Angle grinder..small – price in Kenya — Angle grinder..small
**KSh 4,000**

Angle Grinder Machine – price in Kenya — Angle Grinder Machine
**KSh 6,500**

Large Angle Grinder GWS 2000-180 – price in Kenya — Large Angle Grinder GWS 2000-180
**KSh 11,990**

Bosch GWS 2200-230 Angle Grinder Professional (9 Inches) – price in Kenya — Bosch GWS 2200-230 Angle Grinder Professional (9 Inches)
**KSh 15,800**

Grinder	Good for	Price
Bosch – GWS 700 Professional Angle Grinder.	Small 4½" jobs, light fabrication	KSh 6,990
Angle grinder..small	Light DIY	KSh 4,000
Angle Grinder Machine	General workshop use	KSh 6,500
Large Angle Grinder GWS 2000-180	Large 7" discs, heavy cutting	KSh 11,990
Bosch GWS 2200-230 Angle Grinder Professional (9 Inches)	Large 9" discs, heavy steel and masonry	KSh 15,800

Which Disc for Which Job?

Disc	Use	Never
Thin cutting disc	Cutting steel bars, pipes, sheets	Side-grinding (it can shatter)
Grinding disc (thick)	Removing welds, smoothing edges	Cutting
Flap disc	Finishing and blending	Heavy cutting
Diamond disc	Tiles, stone, concrete	Steel
Wire brush	Rust and paint removal	Without a guard

Consumable	Use	Price
Cutting Disc	Cutting discs	KSh 200
Cutting Disc Small	Small cutting discs	KSh 100
Grinding Disc and Bit Set	Mixed grinding discs and bits	KSh 5,050

How to Change an Angle Grinder Disc

Unplug the grinder (remove the battery on cordless models).
Press the spindle lock and undo the outer flange with the spanner.
Check the new disc is the right size and its maximum RPM is at or above the grinder’s.
Fit the disc, refit the flange and tighten firmly.
Release the spindle lock, refit the guard and run the grinder for a few seconds pointing away from people.

Safe Cutting and Grinding Technique

Clamp the work in a vice or with clamps; never hold small pieces by hand.
Stand to the side of the disc line, not behind it.
Let the disc reach full speed before it touches the work.
Cut with the disc straight; do not twist or force it.
Grind with the disc at about 15–30° to the surface.
Direct sparks away from people, fuel and gas cylinders.
Wait for the disc to stop before putting the grinder down.

Protective Gear

Gear	Protects	Price
Safety and Support Gear	Eyes, face and body	KSh 4,200
Gloves -Heavy Duty Rubber	Hands	KSh 250

Add ear protection; grinders are loud enough to damage hearing over time. Avoid loose sleeves, scarves and long hair near the disc.

Kickback: if the disc pinches in a cut, the grinder can jump back towards you. Support the work so the cut opens as you go, keep both hands on the tool and never stand in line with the disc.

Worked Example: Cutting Steel Bars for a Gate

A fundi clamps 12 mm bars on a bench, fits a new thin cutting disc rated above the grinder RPM, wears a face shield, gloves and ear defenders, and cuts with the guard between him and the disc. He switches to a grinding disc to clean the burrs; he never uses the cutting disc on its side.

Common Mistakes to Avoid

Removing the guard for "better access".
Using a cutting disc for side grinding.
Fitting a large disc on a small grinder.
Changing discs with the grinder plugged in.

Not sure which one fits? Send us your details on WhatsApp or through the product page and we will help you choose.

Frequently Asked Questions

What is the safest way to use an angle grinder?

Right disc, guard on, both hands, clamped work, full PPE and stand to the side of the disc.

Can I use a cutting disc for grinding?

No. Thin cutting discs can shatter when loaded on their side.

What size angle grinder should I buy?

A 4½" grinder for light work; 7" or 9" for heavy cutting.

Why does an angle grinder kick back?

The disc pinches or snags in the cut; support the work and keep the disc straight.

How often should I replace grinder discs?

When worn down to the label or if cracked, chipped or dropped.

Prices shown are regular prices on Buy More Mall. Many products are currently on offer, so open the product page to see today's price.

Home