0-1/2" NMTB #40 INTEGRATED DRILL CHUCK (3701-3011)

0-1/2" NMTB #40 Integrated Drill Chuck T.I.R. is ≤ .0022". Integrated design maximizes rigidity & accuracy. Keyless, self tightening design. Integral shank is more compact than a combined drill chuck and arbor and eliminates the chuck slipping on its arbor. Drawbar end thread is 5/8" - 11 Shipping Weight: 3.8 lbs