The 9564P 4-1/2 in. Angle Grinder combines a Makita-built 10 AMP motor with best-in-class durability features to deliver more output power and increased performance. The 9564P is ideal for welders， fabricators， ship yard contractors， masons， electricians， automotive technicians， stone and tile contractors， HVAC， and more.The 9564P is equipped with SJS mechanical clutch syster， a Makita innovation engineered to protect the motor and gears. With SJS， the drive shaft from the armature to the drive gear is spring-loaded during normal grinding load. If binding occurs or the wheel is forced to stop， the spring is compressed， which allows the drive shaft to slip. The result: gear tension is minimized for longer gear life as the armature continues to rotate， which helps prevent motor burn-out.The motor-protection function of SJS is mechanical， not electronic. This is a key point-of-difference， as the mechanical function does not require the contractor to stop and re-start the tool in the event that the wheel is forced to stop. With an electronic clutch， the tool requires a re-start.
Powerful 10 Amp motor delivers more output and 10，500 RPM for the most demanding applications
Larger cooling fan and blades pull more air through the motor to help maintain lower operating temperature
Large flush-mount paddle switch with integrated lock-off tab for more comfortable operation
Labyrinth construction prevents debris from penetrating the motor， bearings and gears for longer tool life
Clam-shell gear box design for greater durability and easier servicing
Spiral bevel gears for smoother rotations and a more efficient transfer of energy
Zig-zag varnish protects the armature coil from dust and debris for longer motor life
Spring loaded metal sealed drive bearing is engineered to prevent dust and debris from penetrating drive bearing
Tool-less wheel guard for more convenient adjustments
1-year warranty
Includes: side handle (153489-2)， tool-less wheel guard (135107-4)， inner flange (224399-1)， lock nut (193465-4)， lock nut wrench (782424-9)
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