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3/8″ Drill Chuck Key
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3/8″ Drill Chuck with Straight Shaft Arbor
This chuck comes with a straight shaft arbor designed to fit in our multi-tool holders with 3/8" mounting holes*. The straight shaft arbor will also work with our 3/8" insert holder tool post (P/N 7600). It has a 3/8" diameter straight shaft with a machined flat for holding in the posts. Ensure the flat surface on the arbor is oriented toward the top of the tool post, so the 10-32 x 3/4" SHC screw will be perpendicular to the flat. This orientation will assure that the arbor does not turn or move when force is exerted on the tool.
*Multi-tool holders with 3/8″ holes:
3/8″ Drill Chuck with #1 Morse Arbor
This chuck includes a #1 Morse arbor and drawbolt so that it can be mounted in the headstock of the lathe or mill. It will hold drills from 3/32" (2.4 mm) to 3/8" (9.5 mm) in diameter. If runout of less than .003″ amount is required, collets should be used to hold the drill rather than a chuck.
NOTE: Because of its longer length and ability to hold longer 3/8" drills, this chuck is normally recommended for use on the longer 4400-series benchtop lathes.
3/8″ Drill Chuck with Two Arbors
This chuck includes a #0 Morse arbor for use in the tailstock for center drilling and a #1 Morse arbor for use in the headstock. It will hold drills from 3/32" (2.4 mm) to 3/8" (9.5 mm) in diameter. Runout is .003" or less. If runout of less than this amount is required, collets should be used to hold the drill rather than a chuck.
NOTE: Because of its longer length and ability to hold longer 3/8" drills, this chuck is normally recommended for use on the longer 4400-series benchtop lathes.