STOCK NO. ET-5397 QPAC Q199HD-60-7 Heavy Duty Crankshaft Lapping/Micropolishing Machine Maximum Crankshaft Length: 60” Maximum Stroke: 11” Maximum Diameter: Mains & Pins: 5.5” Maximum Part Weight: 400 lbs. Machine Description: Item 1.00 (1) QPAC Model No. Q199HD-60-7 Heavy-Duty Micropolisher for various crankshafts. This machine is designed to allow Micropolish Arm units to slide behind headstock and tailstock. This allows up to (7) polishing units that can traverse the entire length of workpiece.