🔐 Lock it down like a pro—safety that never quits!
The Master Lock 491B Grip Tight Circuit Breaker Lockout is a compact, durable safety device engineered to securely lock out high-voltage and high-amperage circuit breakers. Featuring a patented thumb-turn clamp and reinforced materials, it withstands harsh environments and extreme temperatures while accepting all major safety padlocks for reliable, professional-grade lockout/tagout compliance.
| Brand | Master Lock |
| Model Number | 491B |
| Color | Red |
| Product Dimensions | 10.16 x 5.08 x 2.54 cm; 45.36 g |
| Voltage | 120 Volts |
| Material | Steel |
| Item Weight | 45.4 g |
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