The M745 Workhorse drain machine from MyTana Mfg. can adjust cable speed on the fly for maximum performance, and it features two torque settings for safety. It incorporates SmartDrive technology, so cable speed can be throttled up to 300 rpm to negotiate turns, strengthen cleaning force, and expedite feeds and retrievals. Speed can also be reduced to as low as 100 rpm for tackling obstructions and debris. SmartDrive sounds an alarm when cable torque approaches unsafe limits and then automatically cuts power when that limit is reached. The machine comes equipped to work in 3- to 4-inch lines with 100 feet of cable, slip-joint fittings, autofeed, blades and accessories. A sink line kit is available to address 1 1/2- to 2-inch lines, and no tools are needed to swap reels due to the quick-release design of the drive system. 866-327-7176; www.mytana.com.