Conical Diamond tools (Models 139-55 and 139-56) are used for scratching materials of ordinary hardness. These tools are precision lapped to a 90° angle, and are available with a radius point of 3 mil (Model 139-55) or 3.5 mil (Model 139-56).
Diamond Scratch tool (Model 139-58) is used for scratch testing unusually hard materials. This tool is the converging point from three sides and edges of a perfect cube.
1.0mm Hemispherical Scratch tip is ideal for materials that are fragile or when a sharp cutting tool is too aggressive. Intended for use with model 550 or 551, this tool has a modified post and requires the Scale Beam Height Extension Kit.
Carbide Scratch tip satisfies EN 14565 for resilient floor coverings. This tip includes a 45° angle and 0.25mm radius point.
S-20 Tungsten Carbide Contour Shear Tool is used for shearing tests. Precision ground, this tool features a cutting edge lapped to a 25mm diameter with a 30° clearance. The edge is set at a 22° shear angle in relation to the rotation of the table and is designed to shear a groove between 50 to 100 mils in width.