1. Precision Measurement: The Block Gauge set includes 48 pieces of 150mm hardened parallel gauge blocks, crafted from alloy steel, ensuring accurate measurements for all your milling and lathe projects. 2. Versatile Application: Perfectly designed for use with vice milling machines and lathes, this Block Gauge set is essential for any DIY electrical projects or professional machining tasks. 3. Construction: Made from hardened alloy steel, these Block Gauges are built to withstand rigorous use while maintaining their precision, making them a reliable tool in your workshop. 4. Easy to Use: Each Block Gauge in the set is clearly marked for easy identification, allowing you to quickly select the right gauge block for your specific measurement needs. 5. Chemical Safety: This Block Gauge set is free from high-concerned chemicals, ensuring safe usage in various applications without compromising on performance or quality.