Bore and ID Gages Specifications

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Gage or Gaging System Type


	General Gage Type
	Your choices are...
	Bore Gage		Bore gages are used to measure the inside diameter of a hole, bore, or blind hole at shallow to very deep (~0.03 inches to several feet) depths into the bore.
	Internal Caliper		Calipers use a precise slide movement for inside, outside, depth or step measurements. While calipers do not typically provide the precision of micrometers, they provide a versatile and broad range of measurement capabilities: inside (ID), outside (OD), depth, step, thickness and length. Shop tool, spring-type or firm joint calipers consist of two legs with a scissor action and are usually used for comparative gaging or measurement transfer; although some spring-type calipers have dial indicators.
	Gaging System / Station		Gaging systems or stations are larger, more complex units for large-scale gaging. They are usually available in bench top or floor mounted configurations. These devices may consist of several gages, fixtures, or other components for holding or manipulating parts during inspection. Typically, systems or stations have specialized gaging or inspection systems customized for particular OEM application. Air gaging stations, gear testing systems, form gaging systems, tire profiling systems, and universal gaging systems are example of these types of products.
	Hole / Slot Gage		Expanding collet type gages are used for the comparative measurement of small holes. The gage is expanded in the hole and then removed and measured with a micrometer or other external (OD) gage. Alternately, the hole or slot gage can be set and used to check whether the hole is above or below a specific size or tolerance.
	Indicating Bore / ID Gage		Indicators are gaging devices for comparative measurements where the linear movement of a spindle or plunger is amplified and displayed on a dial, column or digital display. Typically, indicators have a lower discrimination (~0.001" to 0.0001") and greater range (~+/- 1.000" to +/- 0.050" total) compared to comparators. The level or precision is sufficient for measurement of precision ground parts and for the calibration of other gages.
	Inside Micrometer		Micrometers are instruments for precision dimensional gaging. They consist of a ground spindle and anvil mounted in a C-shaped steel frame. Micrometers are available in scale, digital, and dial variations.
	Pin / Plug Gage		Pin / plug gages are production functional gages for go / no-go assessment of hole and slot dimensions or locations compared to specified tolerances.
	Rocking Gage		Rocking gages are bore gages that are rocked to centralize or align the gage in the bore for a true measurement. An operator monitors the dial indicator during rocking to read the bore diameter.
	Telescoping Gage		Telescoping gages are expanding gage with two telescoping legs used for comparative measurement of larger holes. The gage is expanded in the hole and then removed and measured with a micrometer or other external (OD) gage. Alternately, the telescoping gage can be set and used to check if a hole is above or below a specific size or tolerance.
	Thread Gage / Verifier		Dimensional instruments, tools, or gaging components are designed for measuring thread size, pitch, or other parameters. Thread plug gages, thread ring gages, measuring wire, thread comparator, thread gaging rolls, thread gaging spring, and STI plug gages are used for thread measurement. Calipers and micrometers with point anvils or contact tips are used for thread or serration measurement.
	3-point Bore Gage		3-point bore gages have three contact points mounted on arms that expand out from a central point. 3-point bore gages can detect lobe or out-of-roundness conditions, which is an advantage over 2-point ID gages. These gages usually have dial or digital displays.
	Other		Other unlisted, specialized, or proprietary bore or ID gage types.
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	Gaging Technology
	Your choices are...
	Air / Pneumatic		Gages or gaging systems use the changes in flow or pressure in air nozzles or inlets internally located in air plugs, probes, rings or snaps or other pneumatic gages. Pneumatic comparators, digital readouts, analog amplifiers, columns or flowmeter / rotameter tubes are used to display air gaging dimensional data.
	Electronic		Electronic gages use LVDT, capacitance, inductive or other electronic probes to sense the distance or displacement of a contact or stylus. Mechanical gages such as micrometers, plug gages, and snap gages may employ an integral electronic probe in addition to the mechanical gaging elements.
	Mechanical		Mechanical gages use comparison or the physical movement and displacement of a gaging element (e.g., spindle, slide, stem) to determine the dimensions of a part or feature. Micrometers, calipers, indicators, plug gages, ring gages or snap gages are examples of mechanical gages.
	Other		Other unlisted, specialized, or proprietary technology types.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Gage Set?		Gage sets include several gages and accessories packaged into a kit, usually in a case with adjusting tools. Tool kits sometimes contain alternate extensions and contact tips, holders, bases, or standards.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

Specifications


	Range:		The total range length or dimensional range that gages can measure.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Graduation / Resolution:		The best or minimum graduations for scaled or dial-indicating instruments, or the best or minimum resolution for gages with digital displays.
	Search Logic:		All matching products will have a value less than or equal to the specified value.

Measurement Scale


	Units:
	Your choices are...
	English		Gages and gaging systems are based on the English system of measurement (e.g., inches).
	Metric		Gages and gaging systems are based on the metric system of measurement (e.g., centimeters, millimeters).
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	Display:
	Your choices are...
	Dial / Analog / Direct Reading Scale		Devices include dial displays, column/bargraphs, and direct reading scales. Dial displays use a pointer or needle mounted in a graduated, disc dial. The dial provides an indication of dimension or position around or from a zero reference point with dial graduations or styles, such as 10-0-10, 45-0-45, 4-0-4 or 50-0-50. Column and bar graph displays provide a graphical presentation of dimensional data. Direct reading graduated scales have rulings or graduations engraved or printed onto a linear, disc, or drum surface that provides a direct indication of the gaged dimension. Vernier scales provide additional amplification or an increased level of precision (e.g., thousandths).
	Digital Display		Digital display types present metrology data in numeric or alphanumeric form. Micrometers, calipers, and indicators are available with digital displays. Gages with digital displays often have data output capabilities using serial or other formats. Digital readouts are a precision type of digital display integrated into dimensional gages or systems.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Features


	Certificate of Calibration		Gages have a certificate of calibration, a document that indicates a gage meets or has been calibrated to specific dimensional tolerance or gaging precision standards requirements. ANSI, ISO, DIN, and NIST standards are used to control gage calibration.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Gage Calibrator		Gages can be used to check or calibrate other gages.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Locking Feature		The slide or spindle of the gage can be locked in a fixed position.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

Bore and ID Gages Specifications

General Gage Type:

Gaging Technology:

Gage Set?

Range:

Graduation / Resolution:

Units:

Display:

Certificate of Calibration?

Gage Calibrator?

Locking Feature?

Help with Bore and ID Gages specifications: