/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / Jack Screws / S190 * Not actual product image S190 Little Giant Jack Screw Set Complete with All Attachments 50680 190 GÇ£Little GiantGÇ¥ Jack Screws and Sets Little Giant Jack Screw Set, 2-1/4 - 3-3/8" (57-85mm) Range, 1-1/4" (32mm) Base Diameter Little Giant Jack Screws are used for leveling work on planer beds, drills, setting up machinery, and general use in toolrooms or machine shops. 190 Series are 2-1/4" to 3-3/8" / 57-85mm in Size. Series 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 is supplied, to be used in place of the screw with swivel cap. Another Extension base is furnished for places where it is not possible to obtain a bearing on a flat surface. Extension V base is for use against a cylindrical form. Features Specifications Parts Downloads 3D CAD Files / Exploded Parts Diagram Product Testimonials California Prop 65 Other similar products 190A Little Giant Jack Screw - Jack Only 190B Little Giant Jack Screw - 2" Extension Base Only 190C Little Giant Jack Screw - 1" Extension Base Only 190D Little Giant Jack Screw - Auxiliary Pointed Screw Only 190E Little Giant Jack Screw - Extension Base Only 190F Little Giant Jack Screw - Extension V Base Only F190A Little Giant Jack Screw - Jack Only, with Fine-Adjusting Screw F190D Little Giant Jack Screw - Auxiliary Pointed Screw with Fine-Adjusting Screw Only S190 Little Giant Jack Screw Set Complete with All Attachments SF190 Little Giant Jack Screw Set Complete, with Fine-Adjusting Screw and All Attachments Contact Starrett Features 20-pitch screw Range : 2-1/4 - 3-3/8" / 57-85mm Maximum Height with Attachments : 6-3/8" / 162mm Jack Base Diameter : 1-1/4" / 32mm 2" / 50mm Extension 1" / 25mm Extension Extension base is furnished for places where it is not possible to obtain a bearing on a flat surface. Extension V base is for use against a cylindrical form. Specifications Made in America: Yes Range (in): 2 - 1/4 to 3 - 3/8" Range (mm): 57 - 85mm Maximum Height - Attachments (in): 6 -3/8" Maximum Height - Attachments (mm): 162mm Downloads Catalog 33 - Section 17 - Precision Shop Tools This section offers quality tools that do not measure, but are needed frequently in manufacturing. Tools such as work positioning tools, scribers, punches, vises and lubricant are an integral part of any shop or manufacturing industry. Precision Hand Tools (Catalog 33) 612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock. 3D CAD Files / Exploded Parts Diagram Login to see related product files. Or create an account. Product Testimonials Write a product review Write a product review Comments* First Name* Last Name* Email* Occupation The information you provide will be used in accordance with the terms of our privacy policy. I agree to the privacy policy. Please provide the required information. Thank you for submitting a product testimonial on www.starrett.com. By submitting information to Starrett, you acknowledge and give express permission for the L.S. Starrett Company to use and share your statements. Parts Member of Kit Item #DescriptionPart No.QtyInformation 1JACK ONLY190A1 2•JACKSCREW W/CAPPT990301 3•BASE #19002137-01 4•ROD, 2 1/4-6 1/4"02143-01 5BLOCK, EXTENSION EXTRA LONG190B1 6BLOCK, EXTENSION EXTRA SHORT190C1 7JACKSCREW .500-20PT190D1 8BASE, SWIVEL190E1 9BASE, EXT. V #190190F1 California Proposition 65 Warning WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov