Improve precision and accuracy in all drilling projects with this Wolfcraft drill guide . Compatible with a range of drill models, it's height is adjustable on spring-loaded guide bars to accommodate different bit lengths. Rubber buffers and a detachable handle increase stability. Drill holes in various materials in a straight line or from an angle of up to 45 degrees. This metal drill guide works successfully on flat surfaces or corners and round objects thanks to the integrated V-groove. The drill guide has different metal drill guides for bushes of 4, 5, 6, 8, and 10 mm in diameter.