Are you comparing line boring products? Mactech's line boring machines are field tested and field proven, with a track record of increased efficiency. Due to our unique design, Mactech machines boast a quicker set-up time, can yield up to 50% more torque, and achieve more accurate measurements than other leading brands, and come with Mactech support 24 hours a day, 365 days a year. Equipment designs that set Mactech apart include a robust feed system, split setup cones and a dual porting bar. See below for how our product compares in the marketplace.