Rotary grinders of this type can do anything you want it to, as long as you have the proper head for the job. Typical heads available are for grinding, buffing, deburring, cutting, polishing, sharpening, drilling, stripping, and more. Heads can be used on a variety of materials, including wood, metal, stone, porcelain, glass, plastic, ceramics, et cetera.
Rotary grinders are completely electric with no hydraulics. The M74 models are all standard with auto down feed, and the worktable can be traversed longitudinally for easy loading and unloading. The Model M74100 coolant system is a cyclonic filtration unit and the spindle has a chiller unit to keep the grinding spindle a consist temperature. The automatic lubrication on this machine will keep the ways lubricated and will shut-down if the way-lube gets low.
Rotary grinders have heavy aged cast iron construction, that have been precision machined and hand scraped. The machines have a three column support with separate wheelhead and table motors. With the roll type thrust bearing on the wheelhead, they will give you many years of trouble free operation and high accuracies.
If you want your rotary grinders to be portable, then you will choose a battery operated type. These tools can go anywhere, from the basement to the attic to the garage to the field. The rotary tool has been around since 1945.Other rotary tools include a cordless pumpkin carving tool, a cordless pet nail grooming tool, and a cordless golf cleaning tool. An electric rotary tool can have a one amp motor that can put out a speed of anywhere between eight and thirty thousand revolutions per minute (RPM). Or, you can go a step up and opt for a larger model. There are models available on the market today that can put out ten to thirty five thousand revolutions per minute! So, don't write off a cordless rotary grinders as being a whimp when it comes to muscle.
