Mahr Indicators are extremely versatile precision measuring instrument to be employed in production and in inspection rooms.

• A complete product range of both Digital and Dial Indicators plus a wide range of accessories that offers the best solution for every measuring task
• All Digital Indicators have practical measuring functions and are equipped with a data output for easier measuring value evaluation
• Mechanical Dial Indicators possess a highly precise movement, also available are a shockproof and a waterproof version, etc.
  

	Indicator Accessories
	Adapt Federal Dial Indicators to a wide range of applications.
		Weights Used with ANSI/AGD type and long range indicators. Applies constant pressure throughout indicator range. To order specify requirement.
		Protective Housing For ANSI/AGD Group 2 indicators. Opens at rear so indicator can be mounted by its back. Mounts to indicator stem using a .687in O.D. bushing (not included). Order HG-100 for Indicator models with ranges up to 6.35mm/.250in, HG-101 for ranges of 6.35mm/.250in to 25mm/1in. Recommended bushings: BU-111 split bushing, or AD-87 split collet. See next page.
		Magnetic Maximum Hand For ANSI/AGD Groups 2 and 3 indicators having plain dials. Accurately indicates maximum reading. Easy to reset. Order 2014804 (Group 2, snap-on bezel), 2011341 (Group 3, screw-on bezel). Styles for Groups 1 and 4 indicators available on special order; consult Mahr Federal Customer Resource Center.
		Range Limiting Caps Used with ANSI/AGD type indicators. Adjustable thru 9.52mm/.375in to limit range to any desired amount. Order CS-123.
		Lifting Levers - CAM Type. Used with ANSI/AGD type and long range indicators.
		Order number
		Left	Right	Use with
		LR-46 LR-48 LR-50 LR-68 LR-115 LR-40	LR-47 LR-49 LR-51 LR-69 LR-116 LR-40	ANSI/AGD Group 1* ANSI/AGD Group 2* ANSI/AGD Group 3* ANSI/AGD Group 4* Federal Models D8IT & Q8IT Ox-Bow Lifting Lever
		*Up to 25mm/1in range
		Tolerance Hands Used with ANSI/AGD, long range and some Perpendicular indicators. Furnished integrally with split bezel. Easily replaces regular bezel.
		Order number
		Snap-on	Screw-type	Use with
		Bezel	Bezel	Indicator Type
		HD-128 BZ-2503	HD-59 HD-57 HD-55 HD-53	ANSI/AGD Group 1 ANSI/AGD Group 2 ANSI/AGD Group 3 ANSI/AGD Group 4
		Electronic Probe Adapter Permits using electronic probes with many Mahr Federal dial indicators. Order AD-138.
		Hole Attachments For ANSI/AGD type and perpendicular indicators with .375in diameter stems. For measuring internal surfaces. Order AT-7293, 47.50mm/1.87in long, AT-7294, 25mm/1in long.
		Brake Attachment For ANSI/AGD indicators with .001in graduations. Requires indicator modification for assembly. Range limited to 6.35mm/.250in for Group 1 indicators; and to 12mm/.500in for Group 2 indicators. Order AT-A-7 stem mount, AT-81, dust cap mount.
		Auxiliary Plungers For extending reach of all ANSI/AGD type and perpendicular indicators with .375in diameter stems and ranges up to 6.35mm/.250in range. Attaches to indicator stem by integral split collet. Body is 12mm/.500in O.D. Order AT-25, 57mm/2.25in long, AT-26, 104mm/4in long. Special lengths available. Replacement contact, PT-184, 8-32 thread.
		Split Bushings Fits all ANSI/AGD type and perpendicular indicators. Permits safe, noncramping stem mounting. Order BU-80, .375in stem hole x .500in O.D., BU-111 for use with protective housings (.375in stem hole x .687in O.D.), BU- 112 (.218in stem hole x .375in O.D.), BU-197 (8mm stem hole x .375in O.D.)
		Split Collet For .375in diameter stem indicators. Six-finger grip permits easy, secure indicator adjustment. Requires 1/2-32 threaded hole. O.D. is 17.45mm/.687in. Can be used with protective housings. Order AD-87. For 1/2-32 tap, order V-892
		Threaded Bushing For ANSI/AGD indicators with 5/16-32 threaded stems (an available option from Mahr Federal). Permits conventional stem mounting of indicator in gages and fixtures. Order AD-62, .625in long, .500in O.D., 5/16-32 internal thread. Threaded bushings for perpendicular indicators.
		Dust Guard For ANSI/AGD perpendicular indicators with .375in diameter stems. Recommended for ranges of 7.62mm/.300in or less. Oil resistant to protect spindle and bushing from dust, mist and contaminants. Order GU-2. For sealed indicators, see Wetproof models.
		Right Angle Attachments For ANSI/AGD type and perpendicular indicators (.375in diameter stems). For making measurements at right angle to spindle movement. Order A-9, regular type with flat spring hinge; for ranges up to 3.05mm/.120in. Replacement spring: SP-56. Order AT-24, long range type with pivot-type bearing; for ranges up to 9.50mm/.375in.