How to Choose a Grinder

✅ Why Choose Carefully

There grinder It is one of the most versatile tools for cutting, smoothing, deburring, grinding and finishing metal, stone, concrete and composite materials. It comes in different versions, each designed for specific processes. Choosing the right model guarantees safety, precision and efficiency, both for light work and for intensive professional use.

🔍 Types of Grinders

🔧 Angle grinder

The most common, also called “flexible”. Perfect for cutting, deburring and sanding with 115, 125 or 230 mm discs.

🔋 Cordless grinder

For mobile work. Excellent for Quick work at height, on construction sites or in confined spaces, with 115 or 125 mm discs.

⚙️ Straight grinder

Used for internal deburring, finishing and precision machining, often used in mechanics and fine carpentry.

🛠️ What to Consider When Choosing

Disc diameter

115 mm → precision work and small sections
125 mm → the most versatile for cutting and sanding
230 mm → for deep cuts in concrete, iron and stone

Engine power
500–800W → light use
900–1400W → standard use
Over 2000W → heavy duty use and 230mm discs

Diet
Electric wire → continuous and powerful
Battery operated → freedom of movement, ideal for construction sites
Pneumatics → for workshops and production lines

Speed and control
10,000–12,000 rpm (standard)
Electronic regulation for delicate work
Soft start and overload protection in pro models

Safety and ergonomics
Adjustable disc guard
Anti-restart switch
Anti-vibration handle and weight balance

👷 Which Grinder to Choose Based on Use

For small household or hobby jobs

→ 115mm Angle Grinder, 700W, Compact and Lightweight

For cutting iron, pipes or profiles

→ 125 mm, 900–1200W, with electronic control and side handle

For demolition and cutting of concrete or stone

→ 230 mm, 2000–2400W, with diamond blade and soft start

For work at height or mobility

→ 18V–40V battery-powered, brushless, with electronic brake and double battery

For finishing and precision work

→ 400W straight or pneumatic grinder, compatible with cylindrical grinding wheels

🛒 Where to buy it

The best Angle grinders, cordless and straight are available at the points of sale EmmetiStore, with professional models from the most reliable brands such as Makita, Bosch, DeWalt, Milwaukee, Stanley and Einhell. The EmmetiStore team will guide you in choosing the perfect model based on the type of work, disc diameter and intensity of use. Also available abrasive discs, diamond discs, backing pads, original spare parts and protection accessories.