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Sherline 4-Jaw Chuck 1030 Sherline 4-Jaw Chuck

SKU: 1030

Your Price:	$128.25
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Sherline 4-Jaw Chuck 1030 Sherline 4-Jaw Chuck 1030

Sherline 4-Jaw Independent Chuck Model #1030 (3.125" O.D)
3/4-16 Spindle Thread

4-Jaw chucks have four advantages over 3-jaw chucks.
(1) They can be used to hold irregularly shaped parts.
(2) With the use of a dial indicator, they can be used to center parts with a great deal of accuracy.
(3) Four-jaw chucks can be used to deliberately hold a part off-center.
(4) They can clamp stock tighter.

This is a valuable asset when machining cams, crankshafts, and similar parts.
The main disadvantage of the 4-jaw independent chuck is that the jaws must be individually set, adding considerable time to setups. Like the Sherline 3-jaw chucks, the 4-jaw chucks can be used to clamp either externally or internally. This 3.1" (79mm) 4-jaw chuck is designed to grip from 3/32" (2mm) up to 1-1/2" (38mm) diameter stock with the jaws in the normal position. The reversed jaws can grip up to 2.75" (70mm) This 4-jaw chuck has a .687" (17mm) through hole with a 3/4-16 thread.

1030 Sherline 4-Jaw Chuck Instructions