Centerline Calipers | McMaster-Carr

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11 Products

Center-to-Center Measuring Caliper Tips


Shown Installed

Install these tips, also known as centerline gauges, onto the jaws of electronic, dial, and vernier calipers to measure the center-to-center distance between two holes. A 60° conical shape allows the tips to fit snugly into holes.

For Caliper Measurement Range	Slot Wd.	Lg.	Material	No. of Tips	Includes		Each
0" to 4", 0" to 6", 0" to 8"	1/8"	2 5/16"	Stainless Steel	2	Hex Key Wrench	00000000	000000
0" to 12"	1/8"	2 3/4"	Stainless Steel	2	Hex Key Wrench	00000000	00000

Calipers for Measuring Center-to-Center

Find the exact distance between the centers of two holes without calculating their diameter. The tapered tips of the jaws stay centered in holes and bores for accurate measurements every time. Extend or shorten one jaw to measure parts with uneven surfaces, such as flanged bearings.

With an LCD display, these calipers give instant measurements—no need to count graduations. Swap between inch and metric or set the position to zero, all with the press of a button. You don't need to reset the zero point since they retain their position when turned off, also known as absolute (ABS) positioning.

Mitutoyo—The go-to for machinists and engineers. Every part of these calipers is made within Mitutoyo's automated system and tested in-house in Japan. Their jaws are laser cut to exact dimensions for the most reliable measurements.

With SPC Data Output—Send measurements to a computer or data processor to store, analyze, and manage data. You'll need a data cable or SPC wireless transmitter and receiver.

Calibration Certificate—Choose these calipers when precision measurements are required for quality control or by regulation. The certificate is traceable to NIST, so you can be confident your measurements are correct and consistent.

	Measuring Range		Accuracy		Measuring Increments							Calipers with Calibration Certificate
	Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Overall Lg.	Body Material	Jaw Material	Enclosure Rating	Mfr. Model No.		Each
Mitutoyo







				With SPC Data Output

				0.4" to 6.4"	10 to 160	±0.0015"	±0.04 mm	0.0005"	0.01	9"	Stainless Steel	Stainless Steel	IP67	573-705-20	0000000	0000000

Accessories and Replacements for Calipers

SPC Data Cables


Mitutoyo Data Out Switch A × 10-Pin Mitutoyo Connector	Mitutoyo Data Out Switch A × USB-A

USB-A Connection—Plug calipers with SPC data output directly into your computer.

10-Pin Mitutoyo Connector—Connect calipers with SPC data output to a Mitutoyo miniprocessor or multiplexer.

	Lg.		Each
Mitutoyo



	Mitutoyo Data Out Switch A × 10-Pin Mitutoyo Connector	40"	00000000	0000000


	Mitutoyo Data Out Switch A × 10-Pin Mitutoyo Connector	80"	00000000	000000
	Mitutoyo Data Out Switch A × USB-A	80"	000000	000000

SPC Wireless Transmitters

Mitutoyo Data Out Switch A Connection

Wirelessly send measurements from calipers with SPC data output to your computer. You’ll also need a receiver.

Electrical Connection	Mfr. Series		Each
Mitutoyo Data Out Switch A	U-WAVE-T	000000	0000000

SPC Wireless Receivers

Wirelessly send measurements from calipers with SPC data output to your computer. You’ll also need a transmitter.

	For Mfr. Series		Each
Mitutoyo



	USB-A	U-WAVE-T	000000	0000000

	For Mfr. Model No.
Mitutoyo


500-752-20, 500-753-20, 500-754-20, 500-762-20, 500-763-20, 500-764-20, 573-701-20, 573-705-20, 573-721-20, 573-761-20	0000000	00000

Replacement Cases

Mitutoyo

	Material		Each
Mitutoyo



	500-172-30, 500-197-32, 500-475, 500-734-20, 500-753-20, 500-763-20, 500-785, 505-731, 505-737, 505-741, 505-743, 573-701-20, 573-705-20, 573-761-20	Plastic	0000000	000000

		Each
		1-9	10-49	50-Up
Replacement SR44 Silver Oxide Battery	00000000	00000	00000	00000