Perfect for workshops or job sites where quick tool alignment is needs for woodworking, edges profilings, or sawing height adjustments in furniture making and carpentry tasks Ideal for woodworkers, cabinetmakers, and DIYer enthusiasts requiring great setup block to calibrates milling machines, shapers, or router tables for intricate projects Crafted from, acrylic, these maintenance friendly block retain calibration integrity over time while enabling seamlessly workflow optimization The 3 in 1 multiple levels design top, bottom, and end measurement point for rapid height adjustments of router bit ( 1 / 8 " to 3 / 4 ") and sawing, ensuring accuracy with clear visibilities Achieve woodworking setups with this 10 piece clear acrylic set, featuring waterproof construction and instantly usability for router tables and table sawing without assembly, Manufacturer: Shurhome