Click to expand Tap to zoom Chain Knocker, Star Bits, 75mm Pipe, 3 Chains, Drill Head (#RS-3075-WS-DR) by Renssi Save Liquid error (product-badge line 32): -Infinity% $113.88 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Renssi Chain Knocker with Star Bits For 12mm cable, 75mm pipe, with 3 chains and a Drill Head