Patent ID: 7610968

Claim:
A powered hand tool comprising: a. a pneumatic motor; b. a rotary shaft affixed to said pneumatic motor; c. a main body formed as a hollow tube member and axially disposed for engagement with said pneumatic motor, said main body comprising: i. a main body rear end; ii. a main body front end, wherein said rotary shaft protrudes from said main body front end; iii. a fluid inlet; d. an internal isolation layer, said internal isolation layer positioned in said main body adjacent the circumferentially inward surface of said main body front end and the circumferentially outward surface of said pneumatic motor; e. a lock nut engaging said main body front end fixing the position of said pneumatic motor front end within said main body; f. an inlet bushing engaging said fluid inlet of said main body; and g. a throttle mechanism to control operation of said pneumatic motor.