B1-CNB-LT-RD CLECO Needle Scaler, B1 Series . Cleco B1 Series Lever Start Needle Scaler features a built-in chisel retainer and a front exhaust. Also featured on the Cleco B1 Series Lever Start Needle Scaler is the lever start for ignition, and it is a needle type scaler. Cleco percussion tools offer durable options for a wide variety of industries. These percussion tools are made from the finest materials available, and they are manufactured to last. Choose between piston, chisel and needle type percussion tools. Bore: 1” Abrasive Capacity: 5” Needles Standard, 7” Needles Optional Stroke: 1.1” Type Housing: Steel Blows Per Minute: 4,600 Weight: 6.3lbs / 2.86kg Overall Length: 15.0” / 381mm Air Inlet Size: 1/4”