S190 Starrett Little Giant Jack Screws
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S190 Starrett Little Giant Jack Screws

Code: S190

$75.96

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Product Description

•••••

S190

Starrett Little Giant Jack Screw

190 Series
2-1/4"–3-3/8" / 57-85mm
191 Series
1-1/2"–2-1/4" / 38-57mm


“Little Giant” Jack Screws are very handy for
leveling work on planer beds, upright drills,
setting up machinery, and for general use in
the toolroom or machine shop.
190 and 191 have 20-pitch screws and for
those who desire a finer adjustment, the F190
has a 40-pitch screw.
An auxiliary pointed screw (D) is supplied,
to be used in place of the screw with swivel
cap. Extension base (E) is furnished for places
where it is not possible to obtain a bearing on
a flat surface. Extension V base (F) is for use
against a cylindrical form.

Specifications 190 191
Range 2-1/4 –
3-3/8"
57-85mm 1-1/2 –
2-1/4"
38-57mm
Maximum Height
with Attachments
6-3/8" 162mm 3-3/4" 95mm
Jack (A) Base
Diameter
1-1/4" 32mm 1" 25mm
Extension (B) 2" 50mm 1" 25mm
Extension (C) 1" 25mm 1/2" 13mm

 

190 & 191 “Little Giant” Jack Screws
Photo Key Description Catalog No. Catalog No.
Set Complete, with Fine-Adjusting
Screw and All Attachments
SF190
Set Complete with All Attachments
S190
S191
A
Jack Only, with Fine-Adjusting Screw
F190A
Jack Only
190A
191A
B
Extension Base
190B
191B
C
Extension Base
190C
191C
D
Auxiliary Pointed Screw with Fine-
Adjusting Screw
F190D
Auxiliary Pointed Screw
190D
191D
E
Extension Base
190E
191E
F
Extension V Base
190F
191F

 

 

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