60-Degree (SJ) & 90-Degree (SK) Cone Burs

60-degree (SJ) and 90-degree (SK) cone burs have a short, cone-shaped cutting head with a sharp tip for deburring and finishing beveled and chamfered surfaces such as counterbored or countersunk holes. SJ burs have a cone angle for deburring 60-degree angled surfaces. SK burs have a cone angle for deburring 90-degree angled surfaces. These carbide burs remove sharp edges, unwanted projections, and excess material from machined workpieces.