
Ridgid 80903 KM-1004 4" Heavy Duty Carbide Tipped Chain Knocker for 5/16" Cable
Ridgid 80903 Description
This 4 in. heavy duty carbide tipped chain knocker is built for 5/16 in. cable and delivers high-impact, wall-to-wall cleaning in hard wall pipe. The durable carbide tips enhance cutting performance to quickly remove scale, hardened deposits, and tough blockages during demanding descaling and restoration work.
Ridgid 80903 Includes
- (1) Heavy Duty Carbide Tipped Chain Knocker for 5/16 in. Cable
Ridgid 80903 Features
- Heavy duty chain knocker built for 5/16 in. cable
- 4 in. diameter for wall-to-wall cleaning in hard wall pipe
- Carbide tipped design for aggressive cutting and long wear
- Helps remove scale, hardened deposits, and tough blockages
- Ideal for professional plumbing, milling, descaling, and pipe rehab prep
- Compatible with KM-1004, 5/16 in LiveCore Cable, 5/16 in DeadCore Cable, K9-204, and K9-204+
Ridgid 80903 Specifications
| Diameter | 4 in / 101.6 mm |
| Cable Size | 5/16 in |
| Max Speed | 2500 |
| Color | Black |
| Material | High Speed Tool Steel |
| Compatible Devices | KM-1004; 5/16 in LiveCore Cable; 5/16 in DeadCore Cable; K9-204; K9-204+ |
| Product Length (in) | 7 |
| Product Width (in) | 1 |
| Product Height (in) | 1 |
| Shipping Weight (lb) | 0.58 |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Ridgid 80903 Description
This 4 in. heavy duty carbide tipped chain knocker is built for 5/16 in. cable and delivers high-impact, wall-to-wall cleaning in hard wall pipe. The durable carbide tips enhance cutting performance to quickly remove scale, hardened deposits, and tough blockages during demanding descaling and restoration work.
Ridgid 80903 Includes
- (1) Heavy Duty Carbide Tipped Chain Knocker for 5/16 in. Cable
Ridgid 80903 Features
- Heavy duty chain knocker built for 5/16 in. cable
- 4 in. diameter for wall-to-wall cleaning in hard wall pipe
- Carbide tipped design for aggressive cutting and long wear
- Helps remove scale, hardened deposits, and tough blockages
- Ideal for professional plumbing, milling, descaling, and pipe rehab prep
- Compatible with KM-1004, 5/16 in LiveCore Cable, 5/16 in DeadCore Cable, K9-204, and K9-204+
Ridgid 80903 Specifications
| Diameter | 4 in / 101.6 mm |
| Cable Size | 5/16 in |
| Max Speed | 2500 |
| Color | Black |
| Material | High Speed Tool Steel |
| Compatible Devices | KM-1004; 5/16 in LiveCore Cable; 5/16 in DeadCore Cable; K9-204; K9-204+ |
| Product Length (in) | 7 |
| Product Width (in) | 1 |
| Product Height (in) | 1 |
| Shipping Weight (lb) | 0.58 |





















