How much does this cost to the nearest dollar?

Manpa 3/4 Inch Crack Cutter For Rapidly Creating Holes, Tunnels, Pockets and Trenches for Woodworking Fits Most 4-1/2 Inch Angle Grinders
Model We had to get used to these names! This crack cutter does not literally translate into English, nor does it do what the name implies. It could be called a Tunnel Tool for the fantastic work this accessory does. Consisting of the primary workhorse, 4” x ¾” (100mm x 20mm) long with 2 – 8mm carbide teeth, secured to a mini extension 3” (78mm) and the Special Adapter this assembly is attached to the center shaft of your angle grinder. With this configuration, the full extension is 8

Price is $86.00
Price: $86.39