This product, whose angle was abraded precisely, fits the molding angle dressing of all kinds of abrasion wheels and the precise dressing of the fine abrasion wheel of external grinding machine and internal grinding machine, and it is the first choice in grinder industry and scientific research and test touch-needle industry. According to user's instance, the angular cutter can be divided into : 40? 60? 90? 120癱one and square tine cutter(The angle and the specification of the shank body can be made according to the user's require-ment).