Hi-Tech Diamond All-U-Need 8
8-inch rock/mineral kit · 21-003 (110 V) · Flat lap
The 8-inch All-U-Need holds one horizontal disc at a time. You change discs between grinding, smoothing and polishing.

Specifications
- Disc diameter
- 8″
- Arbor diameter
- ½ in (disc arbor hole)
- Motor
- 1/4 hp DC, direct drive
- Speed
- Variable, 800–3,400 rpm
- Voltage
- 110 V option (motor rated 115 V); 220 V option for use outside the US
- Machine weight
- 9 lb (Hi-Tech gives one weight for both disc sizes)
- Dimensions
- 10 L × 10 W × 12 H in (Hi-Tech gives one set of dimensions for both disc sizes)
- Water supply
- Gravity drip from a pint feed cup
- Trim saw
- Not included
Identify this configuration
Hi-Tech sells this rock/mineral kit as 21-003 at 110 V or 21-005 at 220 V. It lists the 220 V version for use outside the US and fits it with a Type F plug. The glass/crystal kit has different abrasives.
Included equipment
The kit includes a 180 grit diamond lap; 325, 600 and 1,200 grit smoothing discs; a Tech-11 polishing pad; and 14,000 grit diamond paste. It also includes four backing plates, an Allen wrench, an apron and a manual. The water kit has feed and collection cups, tubing and a valve.
Replacement parts
Choose 8-inch replacement discs and backing plates, each with a ½-inch arbor hole. Hi-Tech sells replacement parts, and its All-U-Need manual covers assembly and cleaning.
Hi-Tech Diamond All-U-Need manuals ↗
Hi-Tech Diamond replacement parts ↗
Hi-Tech Diamond backing plates ↗
