KAKA Industrial SJ-300 Slip Roll Machine, 12-Inch Forming Width, 20 Gauge Capacity 12 forming width with 20 gauge capacity in mild steel A bench top type clamped by your bench vise; Upper roll diameter: 1-1/4-inches Our slip roll machine can roll the round bar steels whose specifications are 6, 8, 10 and so on. Wire grooves: 5/64-inches, 1/8-inches, 5/32-inches, 13/64-inches The upper axis of our slip roll machine can be easily pulled out in order to take out the processed work piece