|CODE||DESCRIPTION||SHAFT THREAD DIAMETER||MAXIMUM CHUCK SIZE|
|MX30001||Extended chuck & key for 3/8" shaft drills||3/8"||1/4 in (6.3mm)|
|MX31001||Extended chuck & key for 1/2" shaft drills||1/2"||1/4 in (6.3mm)|
Popular as part of the power surgery drill assembly 30010, or as a stand alone to use with the drill of your choice, the chuck will grip diameters from 0 to 1/4” (6.3mm). A stainless key is included.
We stock the 3/8” option but the 1/2” option is available on enquiry. The 3/8” shaft option has been the historical standard but many drill manufacturers are now utilizing 1/2” diameter shafts. These dimensions are based on the diameter of the threaded shaft of the cordless drill used. The factory chuck is mounted on this shaft and must be removed to determine which drill extension is appropriate.