The Grobet USA S-300 Flex Shaft Kit delivers dependable rotary power for bench jewelers, metalsmiths, and repair professionals. This forward-only 1/8 HP system reaches up to 18,000 RPM and pairs with a #30-style Jacobs chuck handpiece for versatile tool holding across everyday shop tasks. Smooth startup and steady torque make it a reliable choice at the bench.
Features
- 1/8 HP motor provides approximately 25% more power than 1/10 HP units
- Variable speed up to 18,000 RPM with electronic foot control
- Forward-only rotation for standard grinding and polishing operations
- #30-style Jacobs chuck handpiece accepts a wide range of shank-mounted tools
- Ball-bearing motor design for smooth, consistent operation
- Compatible with Foredom SR motor brushes, sheaths, and inner shafts for serviceability
Specifications
| Motor Power |
1/8 HP |
| Speed Range |
0–18,000 RPM |
| Rotation |
Forward Only |
| Handpiece Capacity |
0–5/32 in (0–3.97 mm) |
| Voltage |
110 V |
| Motor Design |
Ball Bearing |
| Manufactured In |
China |
| Brand |
Grobet USA |
What’s Included
| Item |
Details |
| Flex Shaft Motor & Shaft |
1/8 HP, forward-only, ball-bearing design |
| #30-Style Handpiece |
Jacobs chuck, 0–5/32 in (0–3.97 mm) capacity |
| Chuck Key |
With handle, for #30 handpiece |
| Electronic Foot Control |
Plastic housing, variable speed |
Notes
- Forward-only motor; no reverse function.
- Designed for use with shank-mounted abrasives, burs, brushes, and mandrels up to 5/32 in (3.97 mm).
- Replace brushes, sheaths, and inner shafts as part of routine maintenance to maintain peak performance.
