Specially designed drill-bit easily makes 1/2″ hole so hard to reach areas can be more easily accessed.
FAQs
Use mineral spirits, enamel reducer, or kerosene to purge system after using. Heavy Duty Anti-Rust and Rubberized Undercoating can be thinned with mineral spirits for improved spraying if needed.
In the Box
The Unibit drill makes a clean perfectly round 1/2″ hole.