Makita's new generation of X Lock grinders are equipped with tried and tested ergonomics, reliability and performance, but coupled with the all-new X Lock accesory system which means that changing out accessories is now quicker and easier than ever before. X Lock accessories are simply pressed into position, and the machine automatically locks them in place. When you need to change them over, a switch on the gear housing unlocks them without need for any additional equipment, so you can swap out multiple accessories in rapid succession, and never have to worry about misplaced tools and components holding you up in the middle of a job. The Makita DGA469 is a 115mm cordless angle grinder which can be powered by any 18v LXT Li-on battery. It is a variable speed machine, with a paddle switch, electric brake and a soft start motor. Specifications Battery Type: Li-onBattery Voltage: 18vBore diameter: 22.23mmMax Wheel Thickness: 6mmNoise Sound Pressure: 80 dB(A)Max wheel