Tools design with a unique shank with hex part and round part.
Low friction polymer collar. No surface scratches or burn marks!
These tools combine carbide countersink, high-speed-steel drill bit and free-spinning, low friction depth-stop. The countersink leaves a clean hole edge and the adjustable depth-stop doesn’t mar the surface. The large openings around the collar allow the chips to clear effectively and eliminate clogging.
Warning: When drilling aluminum/non-ferrous materials, for optimal results and extended tool life use lubricant or air cooling. Make sure the material is fixed and drill is stable during drilling.
WARNING: Proposition 65 Warning for California Residents View Details
