Makita X-LOCK 4-1/2 in. x 0.045 in. x 7/8 in. 60-Grit General Purpose Thin Cut‑Off Wheel for Metal and Stainless Steel Cutting E-00446 - The Home Depot
MAKITA GA5061 XLOCK 125mm Disc Grinder Paddle Switch + Brake F/S from Japan | eBay
X-LOCK - Up to 5x faster accessory changes
Makita 40v X-Lock Grinders. Are They MORE POWERFUL? Is X-Lock Better? - YouTube
Makita Xlock 4-1/2 in. x 1/4 in. x 7/8 in. General Purpose 36 Grit Grinding Wheels, E-00424 at Tractor Supply Co.