Enterprise patent

Single-edge milling cutter

Multi-edge milling cutter

A kind of drill bit and drill bit assembly

Three-edged woodworking step drill

Three-edged woodworking through-hole row drilling

Three-edged woodworking blind hole row drilling

A three-edged woodworking through-hole drill

A kind of three-edged woodworking blind hole row drill

An unequal carbide milling cutter

A guided drill

A type of drill

A paneled hinge drill
