... saw 1)Variable pitch teeth for faster, smoother cutting and less vibration 2)Application:concrete ,bricker,metal panel hole ... setters, home owners, do-it-yourselves,construction workers and other professionals3)Cutting depth:51/60mm4)Diameters from 30mm-125mm5 ... materials,like stainless steel panel,alumium alloy panel etc. Development and design:Dongya has more than 20 years manufacture experiences, ...