Use these precision machined brass bars to determine depth of cut, bit height, fence and blade distance, etc. Use individually or stack them together to combine measurements. Won't damage tool edges. The set includes five bars measuring 1/8", 3/16", 1/4", 3/8", and 1/2" square. The #R9810 bars are 4" long. Whiteside Machine Company - Claremont, North Carolina.
California Proposition 65 Notice - WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.