Vises for Small Mills
Last updated on Tuesday, October 29, 2019 06:44:00 AM Mountain US Time Zone

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Mounting Brackets, Adjustable Work Stop, Work Holding Examples, Parallel Sets

Mounting Brackets

A 3-inch, screwless vise for the Taig mill. The original milling vise is not good enough for precision work.
A good vise to use on the mill is this precision screwless type. This type of vise has very flat (+/- 0.0002") &
parallel critical surfaces. It is also, of course, hardened. The movable jaw pulls down as clamping pressure
increases so the part does not rise. The precision surfaces eliminate/minimize part marring. Typically, a
drill press vise does not have the precision or features required for milling. Can be used in conjunction
with a miniature screwless vise.
   Screwless vise exploded diagram

Adjustable Work Stop

3-inch vise; adjustable, pivoting, solid-jaw mounted work stop.
An M6-1 cap head screw holds the bracket.

The adjustable 8-32 screw has a pressed-on knob,
a tip that was diamond ground flat, & a knurled lock nut.



Of course, the stop can be pivoted out of the way,
placed on the other side, or simply removed.

 

 

 

 

 

 

 

 
Click on linked thumbnails

 
Assorted brass shim pack

Work Holding Examples

Milling flats onto a Taig 3/4-16 threaded arbor for a 7/8" wrench
.


Not a screwless design but this excellent precision
Tool Maker's vise can also be used on small mills.
A very high-precision vise.


The Toolmaker's vise needs a pin spanner to fully tighten & loosen.


 A variable angle V-block used to make 45 deg beveled edges.


A 1-inch screwless vise with built-in, ground parallels, is being held at 30 deg by the 3-inch vise.
The built-in parallels aid holding especially small parts.   
Note that 1" screwless vises differ & may or may not have built-in parallels. 
The movable jaw of the small vise is not as wide as the base
so it can be operated while still clamped by another fixture.
Parts can thus be swapped-out while maintaining an accurate, fixed position.


Shown here, a computer keyboard key was CNC engraved
(white) so it will have a customized trans-illuminated label.


Top to bottom: 3-inch, 2-inch, & 1-inch screwless vise size comparisons.

Parallel Sets

A set of 3-inch wide, precision ground parallels (import).

The shorter sets are ideal for smaller mills & vises.


4-
1/2" long, wavy parallel set (Swiss).
The spring steel can compress in the vise for very small pieces.
Use one slightly compressed parallel to support a narrow piece.

Mounting Brackets, Adjustable Work Stop, Work Holding Examples, Parallel Sets

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