We areĀ a producer of cutting tools. drill bit is one of our main products, and we have a lot of other cutting tools as well. Definition of countersink drill A countersink bits is a conical hole....
Shandong Osn Tools Co., Ltd is one of the leading tools factory in China specialized in manufacture and export abrasives, drills, bearings and we also supply the chuck and grinding fluid. Ever since....
Center drills are used with the lathe to drill a hole in the end of stock for mounting between centers in the lathe. They are designed to drill a small diameter pilot hole followed by a 60 degree....