With the widespread use of wood lock hole machines, the demand for carbide woodworking lock hole cutters keeps rising.During production of such cutters, long sl···

At present, hot-pressed white corundum wheels are mostly adopted in tap grinding, which are dressed with diamond forming rollers to form the required shape. CBN···

Step drills are widely used for hole drilling on thin plates under 3mm.High-end HSS step drills are fully ground with CBN wheels, which impose higher requiremen···