Oneway Clamp Block 1-1/2 in. Gap is an essential accessory for securely attaching various Oneway tools and accessories to your lathe. Designed specifically for lathes with a 1-1/2 inch gap between the bed ways, this clamp block ensures a stable and reliable connection for items such as the Bowl Steady, Spindle Steady, and Easy Coring Systems. By measuring the gap between your lathe's bed ways, you can select the appropriate clamp block size to fit ly, enhancing your woodworking setup with precision and ease. This high-quality clamp block is a for any lathe owner looking to expand their tool capabilities with Oneway accessories. Model Number: 3154-143