Straight Up Premium Heavy Duty R04 Carbon Brush Set Compatible With Porter Cable 6302 690 6902 Power Tools Top Shelf Replacement Parts Smooth Operation Genuine Kit 4 Pack

R04 Carbon Brush Replacement Kit Fits Portable Tools 4 Pack
✔️ Replaces R04 N031652 869659 824216 for Porter Cable grinders

This pack of four heavy duty carbon brushes delivers reliable power transmission for angle grinders and die grinders. You can swap these out when sparking slows down your projects or cuts get inconsistent on tough materials.

✅ Direct drop in fit for Porter Cable 6302 690 6902 tool series
✅ High purity graphite core reduces friction during heavy grinding work
✅ Copper wire leads guarantee steady current flow from motor winding
✅ Pre cut length matches factory specs for proper spring tension hold

💡 How often should you replace carbon brushes on commercial angle grinders?
Tracking brush length keeps your power tools handy without killing the motor windings. Swapping them out regularly is a solid habit for any serious crew.
- Watch for sparks jumping near the ventilation slots on housing sides
- Measure remaining graphite stubs whenever torque drops noticeably
- Install fresh sets every few months during high volume production jobs