Starrett - Precision Hand Tools

“LITTLE GIANT” JACK SCREWS 190 2-1/4”-3-3/8”/57-85MM 191 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.

B

A

D

C

E

S190 “Little Giant” Jack Screw set, complete with all attachments

F

190 and 191 “Little Giant” Jack Screws Item Number Global Item Number Description

Country of Origin

Status*

BW277 BW412 BW312 BW307 BW442

190A 191A F190A

MTO MTO MTO MTO MTO

USA USA USA USA USA

Jack only

Jack only, with fine-adjusting screw

S190 S191

Set complete with all attachments

*MTO Made to order - Products subject to longer lead times when stock is not available. MTO lead times: China: 90 days / USA: 120 days. *MTS Made to stock (regular availability).

190 Specifications Range

Maximum Height with Attachments

Jack (A) Base Diameter

Extension (B)

Extension (C)

Inch

mm

Inch

mm 162

Inch 1-1/4

mm

Inch

mm

Inch

mm

2-1/4 - 3-3/8

57-85

6-3/8”

32

2

50

1

25

191 Specifications Range

Maximum Height with Attachments

Jack (A) Base Diameter

Extension (B)

Extension (C)

Inch

mm

Inch 3-3/4

mm

Inch

mm

Inch

mm

Inch

mm

1-1/2 - 2-1/4

38-57

95

1

25

1

25

1/2

13

240 PIN VISES WITH TAPERED COLLETS .010-.200”/0.25-5.1MM • Special tapered collet, providing maximum clamping surface • Smaller body diameter than the chuck to allow fast opening and closing and rapid rotation when used on small work • Available individually or as a complete set in a convenient case

240 Pin Vises

Global Item Number

Range

Item Number

Country of Origin

Status*

Inch

mm

CD487 CD492 CD497 CD502

240A 240B 240C 240D

.010-.055 .025-.075 .045-.135 .110-.200

0.25-1.4 0.64-1.9 1.2-3.4 2.8-5.1

MTO USA MTO USA MTO USA MTO USA

240 Pin Vise Sets CD507 S240Z

Set of All 4 Sizes in Protective Vinyl Case MTO USA

S240Z

*MTO Made to order - Products subject to longer lead times when stock is not available. MTO lead times: China: 90 days / USA: 120 days. *MTS Made to stock (regular availability).

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