This is a new shaper T-bushing. Bushes your 3/4" bore shaper cutter down to 1/2". These have the 1-1/8" long shank and will work on any 1/2" spindle. This bushing is used with stile and rail sets where you need to keep the center cutter in line with the profile cutters. These are sold each as the other bushing would be a short shoulder one. Shipping on this item is free via USPS or UPS. I do combine shipping wherever possible. I do ship internationally. Just email me and I will quote shipping to your country.