Adjustable Tailstock Chuck Holders

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Product Description

Much like the adjustable live center, holding a tailstock chuck in perfect alignment without some method of adjusting it can be difficult or impossible. The adjustment screws and split design allow perfect centering for the chuck, should the quality of your work demand it. P/N 1202 has a 3/8-24 thread for 1/4″ and 3/8″ drill chucks and P/N 1204 has a 0JT taper for 5/32″ Jacobs drill chuck.*

(*Chucks not included)

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The Purpose and Use of the Adjustable Tool Holders

The accuracy that is attainable by adjustable tailstock tools is governed by the amount of skilled effort you put forth. Only someone new to the machine trade would talk about “perfect” alignment. In the machine business, you talk tolerances even if you can’t measure an error because now the error has to be assumed from the tolerances of your method of checking.

These holders are simple to use. The holders are divided into two parts with flanges. These flanges are bolted together with two screws. The clearance holes for these screws allow the front to be adjusted in relation to the rear. The rear section has a witness mark (groove). This mark should always be located at the top so the holder is located the same way in the tailstock each time.

The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.


Always wear safety glasses when operating machine tools.

Download PDF 1204 Instructions

Instructions PDF Download

Download PDF 1201 Instructions

Instructions PDF Download

Chuck Holder Material 12L14 Steel
Chuck Holder Coating Black Oxide
12040 Adjustable Tool Body
12050 (2) 8-32 x 3/8″ SKT HD Cap Screw
12060 (2) #8 Washer
12070 9/64″ Hex Key
12090 Adjustable Chuck Arbor Face
12040 Adjustable Tool Body
12050 (2) 8-32 x 3/8″ SKT HD Cap Screw
12060 (2) #8 Washer
12070 9/64″ Hex Key
12140 Adjustable OJT Chuck Arbor Face


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