I am in the Bosh tools programs and I got this for my husband since he loves to do house work and work outside.

BOSCH Abrasive Cut-Off Wheel: Type 1, 4 1/2" x 0.045" x 7/8", Aluminum Oxide, 60 Grit, X-LOCK.

I use these blades to cut metal,instead of using a hacksaw or cutting torch. They result is a neat,, narrow clean cut.