Not a rotary tool, But a Mico motor tool
At first look is too small for hogging out large amounts of material. Very effective for detail carving and small cuts. Could be useful for small hinge mortises. Easy cutter change with a twist to open and close. Has 2 collets for 3/32 and 1/8 inch bits. Storage on unit for up to 6 bits . Comes with 2 types of power handle holders (on unit and table top) makes it easy to lay unit down while still spinning. Hand unit is easy to handle and light weight cord is not as tiring as cable powered carvers. Capable of handling small bits for tight areas. Could also be used for cleanup on smaller mortises.