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5/32" Drill Chuck with #1 Morse Arbor

Product #: 1010
Price: $73.50

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0JT5/32" Jacobs Drill Chuck

These chucks are designated “0JT” which stands for “Zero Jacobs Taper”, because it comes with a #0 Jacobs tapered hole in the back. Into that we have pressed a special arbor that provides a #1 Morse taper to fit into the Sherline headstock. A chuck key plus a drawbolt and washer are included with P/N 1010 to secure the chuck in position.

These chucks are useful for holding very small drills and their shorter length provides an increase of about 1/2″ in working space between centers compared to the 1/4″ drill chuck.

Runout as specified by manufacturer is .004″ or less but we try to maintain .003″ or less in our testing process. If runout of less than .003″ amount is required, collets should be used to hold the drill rather than a chuck.

NOTE: Because the arbor is pressed into the chuck, it is not interchangeable from chuck to chuck. A separate chuck must be purchased for #0 and #1 Morse use.


  • Chuck Capacity - 5/32″ (4 mm) – #80 (.0135″ or .34 mm)
  • Arbor - #1 Morse for headstock
  • Runout - .003″ or less
  • Includes - chuck key, drawbolt+washer
Replacement Parts
10170 - 5/32″ chuck arbor, #0 Jacobs taper to #1 Morse taper
10180 - chuck key, 5/32″ drill chuck
10190 - drill chuck body
30880 - 1/4-20 x 5″ drawbolt with centering washer (for #1 Morse arbors)

Download PDF Instructions

Instructions PDF Download


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5/32" Drill Chuck with #0 Morse Arbor


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