Description :
0.3-4mm Universal 3mm Drill Chuck Connecting Rod Engraving Conversion
Available in the grinding machine (dental drill) and other equipment.
How to use : First governor speed adjustment in the !#!amp!*!quot;minimum or zero turn!#!amp!*!quot;， then turn on the power， adjust the speed， speed not more than 1w， to avoid damage to the shaft.Caution : Once installed on this universal chuck. Please do not direct adjusted to high-speed operation， or may cause the rear axle bend.
Specification :
Drill Chuck Dia : 0.3-4mmConnecting Rod Dia : 3mm
Package includes :
1 x 3mm drill chuck1 x Connecting shaft
Details pictures :