Makita 4-1/2 inch angle grinder combines 7.5 amp power with comfort and motor protection features for longer lasting industrial performance. The 9557PB angle grinder delivers 11,000 RPM, with soft start for smooth start ups. The angle grinder also features a range of durability features including labyrinth construction which seals and protects the motor and bearings from dust and debris for longer tool life, as well as a protective zig-zig varnish engineered to seal the armature from dust and debris. Ease-of-use features include an extra large paddle switch for comfortable operation and a lock-on/off feature for continuous operation. The 9557PB weighs only 4.5 lbs., with a side handle that can be easily installed on either side of the tool. In addition, the “tool-less” wheel guard adjustment provides easy clamping. This grinder also has an AC/DC switch for use with alternative-power sources. The 9557PB is a versatile and powerful grinder engineered for cutting, grinding and polishing applications. What's Included: 4-1/2 in. grinding wheel (A-95956), 4-1/2 in. wheel guard (125273-5), lock nut (193465-4), lock nut wrench (782422-3), side handle (153489-2), and inner flange (224399-1)Powerful 7.5 AMP motor delivers 11,000 RPM for high output powerPush button spindle lock for operator convenienceCompact design with small 2-1/2 in. diameter barrel and weighs only 4.5 lbs. for added comfortLabyrinth construction seals and protects the drive gear and bearings from contamination for longer tool lifeLock-on/off feature for continuous operationAC/DC switch for use with alternative power sourceProtective zig-zig varnish seals the armature from dust and debris for longer tool lifeExtra large paddle switch for comfortable operationThicker coil wires are wound more closely to reduce heat and energy lossAll-ball bearing design and metal gear housing for durability