| Patent Number |
Title Of Patent |
Date Issued |
| 7476067 |
Drill bit |
January 13, 2009 |
| A drill bit having a shank portion and a cutting portion, which cutting portion generally has at least one cutting edge and a chip flute that has a helical portion. The drill bit has at least one straight coolant channel that has a coolant exit orifice disposed at least partially in |
| 7390148 |
Boring tool and a cutting insert therefor |
June 24, 2008 |
| This invention relates to a boring tool having a cutting insert. The insert has a chip breaker with a base that extends from the secondary cutting edge to the primary cutting edge. The primary cutting edge, which is also referred to below as the major cutting edge, thereby runs diago |
| 7070367 |
Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in |
July 4, 2006 |
| A twist drill, having a replaceable drill tip, comprising a drill bit shaft (1), a cutting insert (2) which is detachably fixed thereto and which forms the tip area of the twist drill, and comprises a flute (3) that continues into the cutting insert (2). The cutting insert rests, wit |
| 7008150 |
Twist drill for drilling, a drill with a cutting insert, and a replaceable cutting insert for a |
March 7, 2006 |
| On a drill with a base body and a replaceable cutting insert, the cutting insert lies in a receptacle that runs through the base body at a right angle to the latter's longitudinal axis and is open toward the drill tip, whereby the cutting insert is in contact by means of two diametricall |
| 6164879 |
Drilling tool for drilling in solid metal |
December 26, 2000 |
| Proposed is a drilling tool for drilling in solid material, having a base body (1) containing chip flutes (5, 5a) and at least two interchangeable inserts (3, 3a) at the face of the base body (1). The inserts are arranged on the base body at different radial distances such that their wor |
| 5967710 |
Drilling tool for drilling in solid metal |
October 19, 1999 |
| Proposed is a drilling tool for drilling in solid material, having a base body (1) containing chip flutes (5, 5a) and at least two interchangeable inserts (3, 3a) at the face of the base body (1). The inserts are arranged on the base body at different radial distances such that their wor |
| 5915895 |
Drilling and chamfering tool |
June 29, 1999 |
| A rotary tool for drilling and chamfering, which takes place in one common advance, essentially comprises a base body, a drill clamped centered therein and a chamfering tool disposed on the end of the base body toward the drill tip and having a cutter body tip disposed next to the flank |
| 5904455 |
Drill with a drill point part |
May 18, 1999 |
| A drill with a drill point part that contains the drill cutter and is made of a solid hard material. The drill point part is replacably attached to the end face of a drill shaft. The drill shaft is penetrated by a shaft groove which extends in an axial direction of the shaft to accomodat |
| 5873683 |
Boring tool |
February 23, 1999 |
| A drilling tool, in particular a drill, has replaceable cutting elements that form the cutting edges, and chip-removing flutes. A chip shaping area (22) at least partially made of a more wear-resistant material than the drill body itself is arranged next to the faces (11) of the main cut |
| 5820316 |
Guide element for a cutting tool |
October 13, 1998 |
| Guide element for a cutting tool having a location hole (20) in the tool shank (4) having an internal thread (16, 10), which has a threaded bolt (14) having an external thread that can be screwed into the internal thread (16, 10) and is spring mounted in the screw-in direction when s |
| 5800100 |
Drilling tool with reset inserts |
September 1, 1998 |
| The invention pertains to a drilling tool for drilling in solid metal. It comprises a base body with flutes for chip removal and two interchangeable inserts (1) designed especially as reset bits, having the same shape and size and being arranged in a recess at the end of a flute at the f |
