Drill

Details Drill Drill

B - Operations, Transporting

23

B

B23B 51/06 (2006.01)

Patent

CA 2533017

A drill bit with at least two cutting edges (7, 8) and each with an at least partially spiraled flute (9, 10) extending from them to a shaft end (6) comprises a coolant channel (13, 14) extending from a shaft end (6) and running parallel to the tool axis (A), whose outlet openings (15, 16) are arranged in the flute (9, 10) and oriented toward the cutting edge (7, 8).

La présente invention concerne un foret comprenant au moins deux arêtes de coupe (7, 8) et respectivement une goujure (9, 10) qui part de ces arêtes de coupe dans la direction d'une extrémité de queue (6) et qui est au moins partiellement hélicoïdale. Ce foret présente un canal de refroidissement (13, 14) qui part de l'extrémité de queue (6) et est parallèle à l'axe (A) de l'outil. L'ouverture de sortie (15, 16) de ce canal de refroidissement se trouve dans la goujure (9, 10) et est dirigée sur les arêtes de coupe (7, 8).

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