Whiteside Brass Bar Set-Up Kit
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. Each set includes five bars measuring 1/8", 3/16", 1/4", 3/8", and 1/2" square. The #R9800 bars are 2-1/2" long and the #R9810 bars are 4" long. Made by Whiteside, USA.