US Patent Issued to COLT TECHNOLOGIES on Sept. 9 for "Cylindrical head boring tool, in particular a forstner bit" (German Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,500, issued on Sept. 9, was assigned to COLT TECHNOLOGIES GMBH (Lindlar, Germany).

"Cylindrical head boring tool, in particular a forstner bit" was invented by Jurgen Miebach (Lindlar, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cylindrical drill bit includes at least one set of circumferential cutting edges positioned at a circumference of the drill bit; the circumference is centred to a longitudinal rotational axis; each set of circumferential cutting edges includes at least two circumferential cutting edges; and the at least two circumferential cutting edges have a mutually different radial distance from the longitudinal rotational ...