Compatibility: This product is Compatible with BLACK AND DECKER CIRCULAR SAW PL40 P.L40 PL40C. Also Compatible with HEDGE TRIMMER GA100A TYPE 1, GA1400EA TYPE 1, D38A TYPE 1, D38B TYPE 2, ST10A TYPE 1. Compatible with SAW BD59A TYPE 1, P3703A, P3703LA TYPE 1, DN57, DN57A TYPE 1, DN59A TYPE 1, DN630SEA TYPE 1, DN810A TYPE 1, DN820A TYPE 1, SR300, SR300A TYPE 1, ST142A TYPE 1. Easy to install: Direct replacement without adjustment, perfect compatibility and high reliability. Product material: The product is specially designed and made of metal material, with high service life and not easy to damage., Manufacturer: The Lord of the Tools