One Fit, 1-1/4", Long Life, Bi-Metal Blade, For Wood With Nails, Highest Quality High Speed Steel Material, Made To CutLarger Framing Nails, Bolts, Sheet Metal, PVC & Drywall, Fits Fein, Bosch, Makita, Dewalt, Rockwell, Porter Cable, Milwaukee & More Oscillating Tools, Adaptor Included To Fit Dremel Quick Release & Old Rockwell.