Patent ID: 9718134
Date: 2017-08-01
CPC Classifications: B23B,Y10T

Claim:
1. A drill chuck comprising: a chuck body that is made of plastic or fiber-reinforced plastic; a spindle socket; and a tool holder in which clamping jaws that are adjustable via a threaded ring are guided in adjustable fashion; a securing bushing arranged on an outer circumference of the chuck body in a vicinity of the tool holder, wherein the securing bushing has a fine denticulation on an inner circumference of the securing bushing, wherein a height of the denticulation lies in a range from 0.15 mm to 0.60 millimeters, wherein an angle between adjacent tooth flanks lies in an angular range from 45° to 75°, wherein tooth valleys are rounded and a radius of the rounded tooth valleys lies in a range from 0.10 mm to 0.25 mm, wherein a number of teeth of the denticulation lies in a range from 80 to 200, and wherein when the securing bushing is mounted onto the chuck body, material in the chuck body is redistributed.