Description
The hang-up flex shaft machine for jewelers and engravers who need hands-free speed control and a lightweight handpiece for detailed work — a 300W full copper motor delivers up to 20,000 RPM through a 100cm flexible shaft, with a stepless foot pedal that lets you vary speed from 0 to full without releasing your grip on the workpiece.
Key Selling Points
- 300W full copper motor delivers up to 20,000 RPM — sufficient power for sustained professional use across jewelry polishing, engraving, carving, and metal finishing work
- Stepless speed foot pedal allows hands-free speed adjustment from 0 to 20,000 RPM — keep both hands on the workpiece while controlling speed with your foot
- 100cm (39 inch) flexible rubber shaft reaches into tight spaces and allows comfortable working angles regardless of motor position
- Chuck accepts tools from 0 to 5mm shank diameter — compatible with standard burrs, bits, polishing wheels, sanding drums, and cutting discs
- Integrated heat vent on the motor housing prevents overheating during extended use sessions
- Hang-up design — motor mounts above the work area so the flex shaft hangs naturally without kinks, reducing hand fatigue and improving control
- Available in 110V and 220V to match your workshop power supply
About This Flex Shaft Machine
A flex shaft machine separates the motor from the handpiece using a flexible rotating shaft, which means you hold a lightweight handpiece rather than the full motor weight during detailed work. This makes it significantly easier to maintain control during fine jewelry work, engraving, and carving compared to holding a full rotary tool. The motor hangs above the work area on a hook or stand, and the 100cm shaft gives you a full meter of reach in any direction.
The foot pedal speed control is the key operational advantage of this setup — you can start, stop, and vary the speed without releasing your grip on the handpiece or repositioning your hands. This is particularly useful for jewelry work where you need to transition between slow, controlled passes and faster material removal within the same session. The 0-5mm chuck range covers the full range of standard rotary tool accessories used in jewelry making, wood carving, and metal finishing.
Common Applications
| Application | Typical Work |
|---|---|
| Jewelry making and finishing | Polishing, engraving, stone setting preparation, deburring castings |
| Wood and bone carving | Detailed carving, shaping, texturing, and surface finishing |
| Metal finishing and fabrication | Grinding, milling, slotting, sawing, and surface texturing |
| Model making and prototyping | Precision work on small models, prototypes, and detailed components |
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelers, engravers, and carvers who need hands-free speed control during detailed work | Tools with shank diameter above 5mm — the chuck range is 0-5mm |
| Workshops where the motor can be mounted above the work area on a hook or stand | Heavy-duty grinding or cutting that requires more than 300W — this is a precision tool, not a heavy grinder |
| Extended work sessions where a lightweight handpiece reduces hand fatigue | Bending the flex shaft beyond its natural radius — sharp bends damage the internal cable |
Technical Specifications
| Voltage | 110V or 220V (select at checkout) |
| Frequency | 50 / 60Hz |
| Power | 300W |
| Maximum Speed | 20,000 RPM |
| Chuck Range | 0 - 5mm |
| Motor Type | Full copper motor with heat vent |
| Flex Shaft Length | 100cm (39 in) |
| Motor Dimensions | Diameter 8cm x Height 12.5cm |
| Weight | 3kg (6.6 lb) |
| Speed Control | Stepless foot pedal (ABS plastic) |
Pro Tips
- Mount the motor as high above your work area as the shaft length allows — a higher hang point lets the shaft hang in a natural curve without kinks, which reduces internal cable wear and improves handpiece control.
- Lubricate the flex shaft every month with flex shaft lubricant — an unlubricated shaft generates heat and friction that accelerates cable wear and reduces torque transfer to the handpiece.
- Start at lower speeds when working with a new material or new tool — find the correct speed for the task before increasing RPM, as too-high speed with the wrong tool can damage the workpiece or the tool.
- Clean the handpiece and chuck after each session — metal dust and debris that accumulate in the chuck reduce clamping force and can cause tools to slip during use.
- Never bend the flex shaft sharply or coil it tightly for storage — the internal cable has a minimum bend radius, and repeated sharp bending causes the cable to fatigue and break prematurely.
Frequently Asked Questions
What is the difference between the 110V and 220V versions?
Only the input voltage differs — performance is identical. Select 110V for North America and 220V for Europe, Asia, Australia, and most other regions. Verify your workshop voltage before ordering.
What size bits and burrs can I use?
The chuck accepts tools from 0 to 5mm shank diameter. This covers most standard jewelry burrs, carbide bits, polishing wheels, sanding drums, cutting discs, and drill bits used in jewelry making and carving.
Can I use this for extended work sessions?
Yes. The full copper motor with heat vent is designed for sustained use. Taking short breaks every 2-3 hours allows the motor to cool and extends its service life.
Is the flex shaft replaceable?
Yes. The flex shaft is a replaceable component. Replacement frequency depends on usage intensity and lubrication maintenance. Lubricate monthly to maximize shaft life.
How do I mount the motor?
The motor is designed for hang-up installation — mount it on a hook, arm, or stand above your work area. The hang-up position allows the flex shaft to hang in a natural curve and reduces vibration at the handpiece.
What if I have questions after receiving the machine?
Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
What's Included
- 1 x Hanging mill motor (300W, 110V or 220V as selected)
- 1 x Foot pedal with stepless speed control
- 1 x Handpiece with chuck
- 1 x Flexible shaft (100cm)
- 1 x Chuck key
- 1 x Instruction manual
Support
Questions about voltage selection, compatible accessories, or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.





