STI Repair Kit – Prep/Master Jr
STI Repair Kit – Prep/Master Jr is a convenient spare parts package designed specifically for the Prep/Master Jr. grinding machine, helping operators stay prepared for emergency repairs and avoid unexpected downtime. Keeping this repair kit available ensures your machine can be quickly serviced when replacement components are needed, preventing extended operation interruptions.
The kit includes essential maintenance and replacement parts, including a dust band/shroud, 502 Morflex Couplers, mounting bolts, lock washers, drive plate bolts, and Woodruff Keys. Designed for reliable machine support, this genuine STI repair kit provides the critical components needed to keep your Prep/Master Jr. operating efficiently during demanding grinding and polishing applications.
Main Features
- Complete repair kit designed for the Prep/Master Jr. grinding machine.
- Helps reduce downtime by providing essential replacement components.
- Includes drivetrain, dust control, and mounting hardware parts.
- Genuine STI replacement parts for reliable machine maintenance.
- Ideal for emergency repairs and keeping equipment ready for operation.
Specifications
| Property | Value |
|---|---|
| Product Type | Grinding Machine Repair Kit |
| Compatible Machine | Prep/Master Jr. |
| Weight | 8.4 lbs |
| Dimensions | 8 × 8 × 8 in |
| Included Components | Dust Band/Shroud for P/M Jr. (1) |
| 502 Morflex Couplers (2) | |
| 2.25-in. Bolts (4) and Lock Washers (4) for 502 Morflex Coupler | |
| 2-in. Bolts (4) for drive plate | |
| Woodruff Keys for P/M Jr. (2) |





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