einhall 2000w table saw zero clearance insert. Einhall 2000w zero clearance insert This 3D printed blade insert allows you to make precision cuts and massively reduce tear out on your workpiece. Perfect for cutting thin material without the risk of it falling between the blade and the guard. Fitting Lower your blade below the level of the table and remove the riving knife using a 10mm spanner. Secure the insert into position using the included m4 screw. Simply raise your saw blade through the insert to create a “kerf” which precisely matches the blade on your saw. Remove insert and refit the riving knife.