Grobet S300 Flex Shaft Kit-Motor-Plastic Foot Control & No.30 Handpiece-110V

Drive burs, mandrels, brushes, and polishing tools at the bench from one foot-controlled rotary system. 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 runs from 0–18,000 RPM and pairs with a #30-style Jacobs chuck handpiece that accepts shank-mounted tools from 0–5/32 in. (0–3.97 mm). It runs on 110 V and is manufactured in China. Smooth startup and steady torque make it a reliable choice at the bench.

The kit ships with the 1/8 HP forward-only ball-bearing motor and shaft, the #30-style handpiece with its Jacobs chuck, a chuck key with handle, and a plastic-housed electronic foot control for variable speed.

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
• Chuck key with handle and plastic electronic foot control included

Compatibility

The motor accepts Foredom SR motor brushes, sheaths, and inner shafts, so wear parts stay easy to source for routine service.

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.