- Protractor allows adjustment of any power drill's vertical angle from -45 to +45 in 5 increments.
- V-Guides on base automatically center dowels and other rounded stock
- Positive stop for accurate drill depth control
- Dual locking knob and handle hold exact settings
- Self-centering channel for edge drilling
- Folds flat for storage
- Shank size: 3/8 in.