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827A Starrett Single End Edge Finder .375 body diam X .200 contact diam.
827A Starrett Single End  Edge Finder .375 body diam X .200 contact diam.
    Quantity in Basket: None
    Price: $25.01

    Starrett Edge Finder (single end)
    .375" Body Diameter

    For fast, accurate work location
    Work surfaces may be located easily, quickly and accurately with these
    edge finders. Work with flat, straight edges, shoulders, grooves, round
    work, studs, dowels or center points and scribed lines – all can be
    accurately located with this handy tool. Body and contacts are made
    of tool steel, hardened, ground and lapped to close tolerances for
    diameter and concentricity.
    How To Use:
    Edge finders are easy to use. They are placed in a collet or chuck. The
    worktable is then traversed to obtain contact between the rotating
    edge finder and the work. Contact will shift to concentric position
    relative to the body and with very slight additional table adjustment,
    will move off center with a decided wobble. At this point, the center
    of the finder is exactly one-half the diameter of the contact from the
    work edge, permitting accurate location for other machining operations
    relative to the edge.
    For locating center points and scribed lines, the pointed contact is used
    by putting a pencil or rule against the center point and making it run
    concentrically. Then the point is brought down to the center point or
    intersection of scribed lines and the table is adjusted so that when the
    tool barely touches the work, the lineup with the point in question can
    be ascertained.

    Catalog No. Description Body Diameter Contact Diameter
    827A Single End .375" .200"
    827B Double End .500" .200" and pointed contact
    827MA Single End 10mm 6mm
    827MB Double End 10mm 6mm and pointed contact