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This Break-In Drill Bit adapter features a 12mm aluminum hex on a 4.3" long, 1/4" diameter stainless steel d-shaft. The hex is secured to the shaft using dual m4 set screws. An m4 button head screw is used to secure your wheel to the hex.
This adapter bit can be used to help break in tires and foam inserts. Simply toss it into your handheld drill or drill press, tighten the chuck, mount your wheel/tire and do what you need to do. Great for breaking in foam inserts on a foam buster (or tire tenderizer) or sanding down tread.
This adapter bit can be used to help break in tires and foam inserts. Simply toss it into your handheld drill or drill press, tighten the chuck, mount your wheel/tire and do what you need to do. Great for breaking in foam inserts on a foam buster (or tire tenderizer) or sanding down tread.