



Planetary Geared Die Grinder, 6mm Collet, 5,500 RPM, Low-Speed High-Torque
Compact planetary die grinder with 6mm collet, 5,500 RPM, and vibration-dampening design for precision grinding and finishing work.
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Planetary Geared Die Grinder with 6mm Collet
Overview
This planetary geared die grinder delivers the torque and control professional shops need for detail work, precision grinding, and finishing tasks. Operating at a controlled 5,500 RPM, it prioritizes power and stability over speed—ideal for applications where accuracy matters more than rapid material removal. The rubberized body design absorbs vibration and keeps operator hands comfortable during extended use. If you're managing a mixed fleet, you might also consider our range of low-noise mini grinders for lighter-duty applications or high-speed alternatives for different operational requirements.
Key Features
- Planetary Gear System: Delivers consistent torque at 5,500 RPM for controlled grinding and finishing
- Dual Collet Compatibility: Accepts both 1/4" and 6mm collets (this model ships with 6mm)
- Vibration Dampening: Red rubberized cylindrical body absorbs tool vibrations and reduces operator fatigue
- Ergonomic Control: Feather-touch throttle lever with safety latch for precise speed modulation
- Compact Footprint: 217 mm length, lightweight at 0.91 kg—easy to maneuver in tight spaces
- Cold-Protection Grip: Plastic body sleeve prevents heat transfer to hands during continuous operation
- Air-Efficient Operation: Draws only 2.0 L/s (4.2 CFM), reducing compressor demand
Why Resellers Choose This Model
Profit Margins & Customer Retention: This grinder targets precision-focused shops (jewelry makers, model builders, automotive detail work, dental labs). These customers prioritize control over speed and will pay premium prices for reliability. The low noise level (88 dB) and manageable 457W output make it suitable for detailed workbench operations where other tools would be overkill—creating a distinct market segment.
Fleet Diversification: Shops that stock this low-RPM model alongside high-speed grinders offer complete solutions, increasing customer lifetime value. Customers who need both detail work and rapid material removal will source from you for everything, not split orders.
Durability & Warranty Value: The planetary gear system and Japanese manufacturing (visible on rear nameplate) suggest robust construction. Lower operating speeds extend component life—reducing warranty claims and increasing customer satisfaction scores.
Technical Specifications
| Specification | Value |
|---|---|
| Collet Size | 6mm (1/4" also available) |
| Free Speed (Maximum) | 5,500 RPM |
| Output Power | 457 Watts |
| Weight | 0.91 kg (2.01 lb) |
| Overall Length | 217 mm |
| Overall Height | 69 mm |
| Noise Level | 88 dB(A) / 99 dB(A) at power |
| Vibration | 4.9 m/s² (acceleration) / 0.9 m/s² (k-weighted) |
| Air Consumption | 2.0 L/s (4.2 CFM) |
| Material | Red rubberized polymer body, black metal collet assembly |
| Connection | Standard threaded rear air inlet |
| Origin | Made in Japan |
Application Fit
Best For:
- Precision grinding, polishing, and finishing work
- Detail-oriented industries: jewelry, dental, model building, watch repair
- Automotive detail shops requiring fine control
- Engraving and fine surface preparation
- Workbench operations where space is limited
Not Suitable For:
- High-volume material removal (use high-speed alternatives instead)
- Heavy grinding on thick materials (lack of RPM means longer cycle times)
- Applications requiring 1/4" collet only (dual-collet design adds cost without benefit if 6mm isn't needed)
Bottom Line
This is a niche product that commands premium pricing in the right market. Stock it if your customer base includes precision shops, dental labs, or jewelry makers. The low noise, vibration control, and planetary gear system justify higher margins. Pair it with faster alternatives to capture the full spectrum of grinding applications.
Recommended Bulk Order Quantities: 5–12 units (specialty market segment)
Margin Opportunity: Resell at 40–50% markup to shops that recognize the value of controlled, low-speed precision work.