Jonard Tools Adjustable Round Hole Cutter 2.2 -10

Cuts plywood sheetrock plasterboard and acrylic sheet up to 1 1/16 (2.7 cm) thick Cutting depth is adjustable via hex locknut and compression spring Cuts hole sizes from 2.2 (55 mm) to 10 (254 mm) Polycarbonate transparent dust shield collects dust and prevents chips from flying into eyes while cutting Rubber gasket provides surface protection against damage tight seal against flat surfaces and prevents fallout from debris Compression spring absorbs vibrations while cutting Can be used with any variable-speed drill Includes rugged carry case Power drill not included with hole cutter