Flaw Detectors

Manual Bolt Hole Probes

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Manual Bolt Hole Probe

Manual bolt hole probes have coils located at right angles to the probe direction, and are rotated by hand with the fastener removed. Standard (fractional and metric) and custom diameters are available with absolute and differential coils.

Overview
Part numbers

	Microdot Connector		Triax Fischer/LEMO Connector
	Absolute		Bridge		Bridge Differential
Range of Hole Size mm (in.)	Part Number	Item Number	Part Number	Item Number	Part Number	Item Number	Working Length mm (in.)
3.2 to 3.9 (0.125 to 0.156)	BPM-8	U8600033	BPM-8-TF	U8600564	BPMD-8-TF	U8600570	28.0 (1.10)
3.9 to 4.7 (0.156 to 0.187)	BPM-10	U8600001	BPM-10-TF	U8600002	BPMD-10-TF	U8600571	28.0 (1.10)
4.7 to 5.5 (0.187 to 0.218)	BPM-12	U8600003	BPM-12-TF	U8600005	BPMD-12-TF	U8600572	28.0 (1.10)
5.5 to 6.5 (0.218 to 0.250)	BPM-14	U8600352	BPM-14-TF	U8600565	BPMD-14-TF	U8600573	28.0 (1.10)
6.5 to 7.1 (0.250 to 0.281)	BPM-16	U8600007	BPM-16-TF	U8600008	BPMD-16-TF	U8600574	50.8 (2.00)
7.1 to 7.9 (0.281 to 0.312)	BPM-18	U8600010	BPM-18-TF	U8600566	BPMD-18-TF	U8600036	50.8 (2.00)
7.9 to 9.5 (0.312 to 0.375)	BPM-20	U8600011	BPM-20-TF	U8600014	BPMD-20-TF	U8600575	50.8 (2.00)
9.5 to 11.0 (0.375 to 0.437)	BPM-24	U8600017	BPM-24-TF	U8600567	BPMD-24-TF	U8600576	50.8 (2.00)
11.0 to 12.7 (0.437 to 0.500)	BPM-28	U8600018	BPM-28-TF	U8600020	BPMD-28-TF	U8600577	50.8 (2.00)
12.7 to 14.3 (0.500 to 0.562)	BPM-32	U8600022	BPM-32-TF	U8600023	BPMD-32-TF	U8600038	50.8 (2.00)
14.3 to 15.9 (0.562 to 0.625)	BPM-36	U8600024	BPM-36-TF	U8600568	BPMD-36-TF	U8600578	50.8 (2.00)
15.9 to 17.4 (0.625 to 0.687)	BPM-40	U8600025	BPM-40-TF	U8600458	BPMD-40-TF	U8600579	50.8 (2.00)
17.4 to 19.0 (0.687 to 0.750)	BPM-44	U8600459	BPM-44-TF	U8600569	BPMD-44-TF	U8600580	50.8 (2.00)

Manual bolt hole probes are available in an absolute (single coil) configuration with a Microdot connector or in a bridge or bridge differential configuration utilizing a Fischer/LEMO Triax connector. Standard manual bolt hole probes operate between 50 kHz and 500 kHz.

Probes listed on this page incorporate a plastic probe tip and body for maximum durability. All probes have a split tip which allows for expansion from the nominal diameter range listed.

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