1.Automatically increases gripping force proportional to increased torque to prevent tool shank slippage. 2.No key required and just to lock by hand. 3.All parts are externally & internally ground precisely. 4.Suitable for heavy duty drilling or conventional equipment use.
Bodies & Collets are externally & internally ground precisely. Convenient to interchange. Steel rings used to avoid possibility of damage and to increase life. Double the chuck life; When one pair of holes wears out, simply insert a set of steel balls in the second pair. The collets allow use of standard Morse Taper Shank Tools or standard split sleeve drivers which permit the use of straight shank tanged drills and reamers.