Product Details: Downtime due to worn-out honing stones costs your fleet valuable time and money. This high-quality replacement set, featuring 240-grit stones, restores peak honing precision, ensuring smooth brake cylinder surfaces for optimal braking performance. The LISLE 10550's compatibility with the LISLE 10500 hone guarantees a seamless fit and immediate return to service. Don't compromise on brake safety. Investing in the LISLE 10550 is an economical and efficient way to prolong the life of your existing equipment and maintain consistent brake performance across your fleet. Prevent costly repairs and downtime by keeping your brake cylinder hone in top working condition. Each set is individually skin-packed for protection and easy storage, ensuring your investment is protected until needed. Order your LISLE 10550 replacement stones today and experience the difference that quality replacement parts make.