Kennametal Hertel Ag Werkzeuge + Hartstoffe

Kennametal Hertel Ag Werkzeuge and Hartstoffe

Bernhard Borschert

Dirk Kammermeier

Ulrich Krenzer

Michael Schuffenhauer

Gebhard Muller

Horst Jager

A method for supplying the working parts of a boring tool, in particular a drill, with a lubricant which both cools and lubricates the drill. A dispenser is connected directly or indirectly to the drill to enable lubricant to be fed to the working parts of the drill through at least one channel in the drill. A boring tool, in particular a drill, is also disclosed with a shaft, a cutter, at least one internal lubricant channel and at least one reservoir being fitted as a dispenser for the lubricant. The reservoir is directly or indirectly connected to the drill by mechanical connections and to the at least one lubricant channel to permit the passage of lubricant. In addition, a tool holder designed to hold the drill is disclosed. The tool holder has an internal dispenser for the lubricant. The dispenser is connected, when the drill is fixed in place, to the at least one lubricant channel in the drill to permit the passage of lubricant.

Rotating cutting tool with a coolant passage and a method of providing

A drill is disclosed with a least one central channel for cooling-lubricant oil feed. The drill has a shaft with at least one flute extending in a spiral around the shaft axis. The oil, fluid, and gas is fed to the point of application of the drill through lateral outlet apertures which are joined to the at least one oil channel by connecting channels.

Drill with cooling-lubricant channel

Drilling and chamfering tool

Growing community of inventors

Nurnberg, Germany

Bernhard Borschert