Skip to main content
red and black straight pneumatic die grinder with collet nut and lever throttleside view of die grinder with dimension overlay showing length 217 mmrear close-up of die grinder showing throttle lever, 'Made in Japan' plate and air inlet

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.

Request Quote

Description

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.