Starrett SF190 Little Giant Jack Screws Set

Item Description

• Six-piece jack screw set can be used to level a workpiece on the table of a planer or drill press or in a machine shop
• 20-pitch jack screw measures 1-1/4" in diameter at the base and offers a height range of 2-1/4 to 3-3/8 inches
• 1" and 2" extension bases can be used in combination with jack screw to achieve maximum height of 6-3/8"
• Auxiliary pointed screw can be used in place of the screw with a swivel cap
• Additional extension base suitable for use on irregular surfaces; extension "V" base can be used against cylindrical form

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