For fine trimming in the carpet making process, trimming the dividing grooves for tufting work, 0~4000rpm Adjustable High power: High Power Motor, Strong Trimming Power,Input:AC100-240V 50/60HZ, Output:DC9-24V5A Long blades: with sharp blades that can be easily inserted into the wool for trimming, a pair of extra blades will be given as a replacement. Professional Tufting Supply: It creates tufted pieces with more detail，It's great for tufting artists Effective：Use with tufting guns, tufting fabrics, and tufted wool to create great looking handmade rugs.