L.S. Starrett 657B Base/Post Ass. W/71 Part# - 52745
Brand: L.S. STARRETT
Part Number: 52745
Weight: 2.05 lbs
Country of Origin: UNITED STATES
Minimum Order Qty: 1 EA
Features: Versatile Holder Set - It includes the 657B Magnetic Base and Swivel Post Assembly for flexible indicator positioning. | Precision Magnetic Base - It features three precision ground magnetic contact surfaces ensuring secure attachment in any orientation. | Enhanced Compatibility - It is compatible with a wide range of Starrett indicators and similar models from other manufacturers. | Robust Construction - It is durable and reliable construction suitable for industrial use. | The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.
Product DescriptionStarrett 657B Magnetic Base indicator holder, including base, dial indicator, swivel post assembly, and body clamp, is an all-inclusive kit, with push-button on/off switch and three-way grip, for use with all Starrett test, back-plunger, dial, AGD, and miniature-dial indicators, as well as similar indicators from other manufacturers. The upright base post has overall length of 6-1/2", with 2" long upper arm that swings in an arc of more than 180 degrees. The set includes a Starrett 657P magnetic base, a 711FSAZ Last Word dial indicator, a 657F swivel post assembly, and a PT07101F body clamp. The base has a push-button on/off switch for one-handed operation, and three precision-ground, magnetic contact points to grip horizontally, vertically, and upside-down.A V-step holds the base to arbors, shafts, and other cylindrical items. The base has an additional 1/4-20 tapped hole on one side for mounting the post. The magnetic base has a non-skid, black wrinkle finish on all non-working surfaces. The 711FSAZ Last Word dial indicator has a small size for versatility, and a half-shaded white and yellow dial to permit correct readings even in a mirror. The indicator has smooth, jeweled lever action with a positive reversing switch, and a hard chrome-plated ratchet contact point on the swiveling tubular body. The swivel post rotates 360 degrees. The body clamp allows the indicator to be clamped to any diameter rod from 1/8 to 1/4". The 657B magnetic base is 1-15/16 x 1-5/8 x 1-7/8 inches/50 x 40 x 48 mm (H x W x D). (H is the vertical distance from lowest to highest point; W is the horizontal distance from left to right; D is the horizontal distance from front to back.)Magnetic bases are magnetic fixtures commonly used in metalworking to hold dial indicators, and are also used in other fields, such as optics. Magnetic bases can assist the user with setting up a workpiece in a milling machine, surface grinder, or other machine tool. The vertical post and rod in a magnetic base connect using swiveling connectors, or snugs. This allows free motion of the arm so that the dial indicator can be moved into position on the workpiece. Many magnetic bases have a V-step, which is a V-shaped notch in the base for holding the base to arbors, shafts, and other cylindrical items. The magnetic base has a circular hole through the center. A round permanent magnet is inserted into this hole, and a handle or button is attached to allow the user to rotate the magnet. Rotating the magnet turns the base on and off as this causes the position of the magnetic field to rotate as well. In the on position, the iron is acting as an extension of the magnet, while in the off position, the magnet is acting as a keeper, preventing the magnetic field from extending through the base.The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880 and is headquartered in Athol, MA.What’s in the Box? No. 657P Magnetic base 711FSAZ Last Word dial indicator No. 657F Swivel post assembly PT07101 Body clampFrom the ManufacturerThe Starrett 657B is comprised of the 657A Magnetic Base Indicator Holder with Swivel Post Assembly and the 711FSZ Last Word Dial Test Indicator with PT07101F Body Clamp. The swivel post assembly on the 657A provides universal adjustment in both the horizontal and vertical planes. Powerful, permanent magnetic base holds firmly to steel or iron surfaces. Push-button turns magnetic force on or off. V-step adapts base to horizontal or vertical arbors and chucks. The Starrett 711FSZ Last Word Dial Test Indicator is among the most versatile available. The small size and variety of attachments will handle all jobs with ease and accuracy. It features a smooth, jeweled lever action, a positive reversing switch, a hard chrome-plated ratchet contact point, swiveling tubular body, and easy reading dials, half-shaded yellow for clarity. The PT07101F
