DURABLE MATERIAL: N920015 Pruner Blade Fit for DEWALT DCPR320B, DCPR320D1 Pruning Saws. The pruner blades are made of high carbon steel material with higher hardness and good toughness, which ensures that the blades can withstand heavy-duty use without being quickly deformed or blunted. PERFECT DESIGN: The N920015 blade is also coated with a non-stick material and a rust-resistant coating that reduces friction when cutting, prevents sap and debris build-up, and is easy to clean. This non-stick coating also helps protect the blade from wear and tear, extending its life. TIMELY REPLACEMENT: The Compatible with Dewalt DCPR320B Pruner Blade is designed for easy installation on the DCPR320 20V MAX Cordless Pruner, timely replacement of the pruning saw blade according to the usage can effectively improve the range and prevent the machine motor from wearing out due to excessive cutting pressure, which may cause irreparable damage. WIDELY USED: the N920015 pruning blade is designed for precise and efficient cutting. With a sharp blade capable of cutting branches up to 1.5 inches in diameter, it is ideal for pruning tasks in gardens, orchards and horticultural work. EASY MAINTENANCE: The pruning shear blade includes 1 replacement blades. After replacing the blade with a new one, the blade can be sharpened first with a knife sharpener to make its blade sharper, which will help to maintain the shearing performance and prolong the life of the blade.