Richard Wolf Borescopes - The Blending-Scope

http://www.richard-wolf.com/en/industry/products/blending-scope.html

The Richard Wolf Blending Scope is a patented system to abrade FOD's on the HPC blades (High Pressure Compressor) of aircraft engines or gas turbines. The Blending Scope is the original system with approvals from all important aircraft engine manufacturers. The sheath of the telescope is inserted through the standard borescope ports. A motor drives the tip with the mounted grinding tool up to several thousand rpm. The blending process is observed through a inbuild high resolution optical lens system either by direct vision through the ocular eyepiece or also via any standard video camera system on a monitor