Tooltos CH-330 Flex Shaft Motor | 180W, 18000RPM, 0.3-4mm Chuck
- 98 in stock
Description
Key Selling Points
- 0.3-4mm 3-jaw chuck accepts fine-shank burrs, engraving bits, and small polishing attachments that the larger 4-6mm chuck models cannot hold — essential for precision detail work on jewelry
- Hang-up motor suspends the 180W motor above the work area — the handpiece weighs almost nothing in your hand, allowing pencil-grip control for extended engraving and carving sessions without fatigue
- 18000RPM full copper motor delivers consistent power for fine cutting, grinding, polishing, and texturing on metal, stone, wax, and wood
- 100cm (39.4 in) rubberized flexible shaft provides reach and flexibility to work at any angle without repositioning the motor
- ABS foot pedal with adjustable constant-speed screw controls motor speed hands-free — both hands stay on the workpiece while the foot manages power
- Heat vent in the motor housing prevents overheating during extended use and extends motor service life
About This Flex Shaft Motor
The most common limitation of flex shaft motors for fine jewelry work is chuck size. Standard models with 4-6mm chucks cannot hold the small-shank burrs and engraving bits used for detail carving, stone setting preparation, and fine surface texturing. You end up either using a larger bit than the task requires, or switching to a different tool entirely. The Tooltos CH-330 solves this with a 0.3-4mm chuck range that accepts the fine-shank attachments that precision jewelry work actually demands — from 0.3mm engraving bits up to 4mm standard burrs.
Like all hang-up flex shaft motors, the CH-330 suspends the motor above the bench so the handpiece in your hand carries almost no weight. You hold it like a pencil and direct it with the same precision. The ABS foot pedal puts speed control under your foot, keeping both hands free for the work. If you need a larger chuck range (4-6mm) for bigger burrs and grinding wheels, see the Tooltos Square Flex Shaft Motor.
Choosing Between the Two Flex Shaft Models
| Feature | CH-330 (This Model) | Square Flex Shaft Motor |
|---|---|---|
| Chuck range | 0.3 - 4mm | 4 - 6mm |
| Best for | Fine engraving bits, small burrs, precision detail work | Standard burrs, larger grinding wheels, heavier attachments |
| Voltage | 220V only | 110V / 220V |
| Choose if | You use fine-shank bits and need the smallest chuck range available | You use standard 4-6mm shank burrs and attachments |
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelers and engravers using fine-shank bits (0.3-4mm) for detail carving, stone setting prep, and surface texturing | 110V power supplies — this machine is 220V only |
| Wax carvers who need a lightweight handpiece for detailed model work with fine-shank carving tools | Bits with shank diameter above 4mm — use the Square Flex Shaft Motor (4-6mm chuck) for larger attachments |
| Stone carvers and lapidary workers needing fine-shank grinding points for detailed shaping work | Cordless or portable use — requires mains power and a hanging point above the bench |
| 220V workshops needing hands-free speed control via foot pedal during precision carving and engraving | Burrs and polishing attachments not included — must be sourced separately |
Technical Specifications
| Model | CH-330 |
| Power | 180W |
| Max Speed | 18000RPM |
| Motor Type | Full copper, hang-up suspension design |
| Flexible Shaft Length | 100cm (39.4 in) |
| Chuck Type | High-precision 3-jaw chuck |
| Chuck Range | 0.3 - 4mm shank diameter |
| Foot Pedal | ABS plastic, adjustable constant-speed screw |
| Voltage | 220V only |
| Frequency | 50 / 60Hz |
| Machine Weight | Approx. 2.9kg (6.4 lb) |
Pro Tips
- Hang the motor at a height that allows the flexible shaft to hang in a gentle curve rather than a sharp bend — sharp bends increase wear and reduce power transmission efficiency.
- Use the constant-speed screw on the foot pedal to set a baseline speed for repetitive tasks — this lets you maintain consistent speed without holding the pedal at a precise position throughout the session.
- Hold the handpiece like a pencil rather than gripping it tightly — a light grip reduces hand fatigue and gives better tactile feedback from the cutting action, especially important with fine-shank bits.
- With very fine bits (0.3-1mm), use lower speeds and lighter pressure — fine bits are more susceptible to breakage from lateral force or excessive speed than larger burrs.
- Keep the flexible shaft clean and lightly lubricated at the connection points — a dry or dirty shaft connection increases friction, reduces power transmission, and shortens shaft life.
Frequently Asked Questions
What is the chuck range on this model?
The CH-330 uses a 3-jaw chuck with a range of 0.3-4mm shank diameter. This is designed for fine-shank engraving bits, small burrs, and precision polishing attachments. If you need to use bits with 4-6mm shanks, the Tooltos Square Flex Shaft Motor is the correct model.
Is this machine available in 110V?
No. The CH-330 is 220V only. For 110V workshops (North America and most of the Americas), use the Tooltos Square Flex Shaft Motor which supports both 110V and 220V.
Does this machine come with a hanging stand or arm?
No. The motor requires a hanging point above the bench — a hook, arm, or dedicated flex shaft stand — which is not included. Most jewelers hang the motor from a hook screwed into the underside of a shelf or from a dedicated flex shaft stand mounted to the bench.
Are burrs and polishing attachments included?
No. Burrs, grinding stones, polishing wheels, and other attachments are not included and must be sourced separately. Select attachments with shank diameters within the 0.3-4mm chuck range.
How does the foot pedal speed control work?
The ABS foot pedal controls motor speed by varying the power delivered to the motor. Press further to increase speed, release to decrease. The adjustable constant-speed screw on the pedal lets you set a fixed minimum speed so the motor maintains a baseline RPM without continuous foot pressure.
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 and can assist with setup, bit selection, and troubleshooting.
What's Included
- 1 x CH-330 flex shaft motor (hang-up design)
- 1 x Handpiece
- 1 x 100cm flexible shaft
- 1 x ABS foot pedal
- 1 x Chuck key
- 1 x Instruction manual
Support
Questions about bit compatibility, voltage requirements, or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
