# KATSU Mini Bench Grinder with Flexible Drive Shaft

Source: https://www.ranked10.co.uk/home/best-bench-grinders/katsu-mini-bench-grinder
Ranked #8 in "Best Bench Grinder 2026: 10 Ranked, Specs That Contradict Themselves": https://www.ranked10.co.uk/home/best-bench-grinders

- Price: £48.99 (checked on Amazon UK on 2026-09-17)
- Amazon rating: 4.4 from 274 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B008CND70C?tag=ranked10-21

The KATSU Mini Bench Grinder is a 3-inch multi-function machine that grinds, polishes, sands and sharpens, and it comes with a flexible drive shaft attachment. It takes the number 8 slot in this guide, sells for £48.99 and is rated 4.4 out of 5 from 274 customer ratings.

Its listing is a good example of why the specification table alone will not tell you what you are buying. The same Amazon page gives the motor three different figures: the bullet points say 150W, the Wattage field says 200 watts, and the Horsepower field says 150 Watts. The voltage is listed twice as well — 230V in the bullet points, 240 Volts in the specification field. The grinding wheel size does the same thing: the title says 3 inch 70mm, the bullet points say Ø75 x Ø20 x 10mm, and the Wheel Diameter field says 72 Millimetres. Everything on this page comes from the Amazon listing for this product and not from any testing we carried out ourselves.

## Specification

| Field | Value |
|---|---|
| Price | £48.99 |
| Rating | 4.4 out of 5 from 274 ratings |
| Power in the bullet points | 150W |
| Wattage in the spec field | 200 watts (as listed) |
| Horsepower in the spec field | 150 Watts (as listed) |
| Voltage in the spec field | 240 Volts (as listed) — the bullet points say 230V |
| Wheel diameter | 72 Millimetres (as listed) — the bullet points say Ø75 x Ø20 x 10mm and the title says 3 inch 70mm |
| Best Sellers Rank | 28 in Bench Grinders |

## Questions people ask

**How powerful is the KATSU Mini Bench Grinder?**

The listing gives three answers. The bullet points say 150W, the Wattage field says 200 watts and the Horsepower field says 150 Watts, so the advertised figure depends on which part of the page you read.

**What voltage does it run on?**

The bullet points say 230V and the specification field says 240 Volts. Both are on the same KATSU listing.

**What size are the grinding wheels?**

The bullet points list Ø75 x Ø20 x 10mm, the Wheel Diameter field says 72 Millimetres and the title describes the machine as 3 Inch 70mm. The listing does not reconcile those numbers.

**Does it have variable speed?**

Yes — the bullet points say "Variable speed allows you to match different kind of jobs", and the Maximum Rotational Speed field gives 10000 RPM.

**What comes in the box?**

According to the bullet points: a flexible drive shaft grinding attachment with a 2.5-3.2mm chuck, a fine sanding stone and a polishing wheel.

**How much does the KATSU Mini Bench Grinder cost?**

The listing price is £48.99, and the customer rating shown is 4.4 out of 5 from 274 reviews.