Precise Ultra Precision Keyless Drill Chucks w/ Integral BT-40 Shank

• Max. T.I.R.≤0.002”
• BT-40 Shank.
• Integrated design maximizes rigidity & accuracy.
• Integral shank is more compact than a combined drill chuck and arbor and eliminates the chuck slipping on its arbor.
• Keyless, self tightening design.