A. Collet /Assembly
B. Lever to Lock Handpiece
C. Depth Stop Collar / Locking Thumbscrew
D. Motor Governor
E. Set Screws to Adjust Motor Arm Height
F. Surveyor Spindle
G. Clamping Arm Lever (Surveyor Spindle)
H. Locking Thumb Screw (Not Shown) Locks Surveyor Spindle
Not shown: Filter/Regulator/Lubricator, Foot pedal