Edge Finder Double Ended 827MB Starrett

827 Series Edge Finders

375", 500" and 10mm Body Diameters

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