Feature

●Made from 40 chrome steel,hardened and tempered, precision ground inside and outside to high concentricity.
●Drill sleeves is used to change the taper of the connective arbors.
●Its is mainly used in drilling machine and lathe machine,extend the spindles of drill presses, radial drills, boring mills and turret lathes.
●Strong shock-resistance and easy to store and maintain.inside and outside are very smooth.
●Compare to the traditional way, its flexible and more accurate, greatly improving the rigidity of the bar, and improve the life of the blade.

Description