Constructed of strong tube steel, the quick-set log clamp tightly fastens logs for sawing and is adjustable up/down and in/out as material is cut. The log clamp uses a large acme thread screw for better durability and a clamp point block for an extra grip on a round log or squared cant. Each log clamp is able to move between other cross sections on the bed. Compatible with LX50START portable sawmills.