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INSIZE Magnetic Back: Magnetic Back - Drop Indicator Backs
INSIZEDrop Indicator Backs

INSIZE Magnetic Back: Magnetic Back

The INSIZE Magnetic Back (MPN 7331-M1) is a drop indicator back designed for use with the Insize 2309 Series digital indicators. It features a magnetic mounting surface with dimensions of 0.6875 in x 2.375 in. This…

SKU 3G-OTH-305130

Brand
INSIZE
Item
Magnetic Back: Magnetic Back
Category
Drop Indicator Backs
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Technical Specifications

INSIZE
Manufacturer Part Number
7331-M1
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INSIZE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The INSIZE Magnetic Back (MPN 7331-M1) is a drop indicator back designed for use with the Insize 2309 Series digital indicators. It features a magnetic mounting surface with dimensions of 0.6875 in x 2.375 in. This accessory enables secure attachment of compatible indicators to ferrous surfaces for measurement setups.

Frequently Asked Questions

What is the INSIZE Magnetic Back 7331-M1 used for?

The INSIZE Magnetic Back 7331-M1 is a drop indicator back that securely attaches compatible Insize 2309 Series digital indicators to ferrous surfaces. It enables precise measurement setups in machining, quality inspection, and industrial maintenance applications where hands-free indicator positioning is required.

What are the specifications of the INSIZE Magnetic Back 7331-M1?

The INSIZE Magnetic Back 7331-M1 has a magnetic mounting surface measuring 0.6875 in x 2.375 in. It is designed for use with Insize 2309 Series digital indicators. The manufacturer part number is 7331-M1, and it is a non‑electronic accessory for drop indicator backs.

Where to buy the INSIZE Magnetic Back 7331-M1 worldwide?

3G Electric supplies the INSIZE Magnetic Back 7331-M1 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this Insize accessory.

How to install the INSIZE Magnetic Back on a digital indicator?

To install the INSIZE Magnetic Back 7331-M1, slide the dovetail of your Insize 2309 Series digital indicator into the back’s groove and tighten the locking screw. Clean the ferrous mounting surface, then engage the magnetic lever to secure the assembly. Always verify indicator alignment before measurement.

Used in

Common applications for INSIZE
Quality control inspection — INSIZE digital calipers (1118-150R) for dimensional checks on machined parts.
Machine tool setup — INSIZE dial test indicators (2380-301) for aligning workpieces and measuring runout.
Hardness testing verification — INSIZE hardness test blocks (HDT-B-HV30D) for calibrating Vickers testers.
Layout and marking — INSIZE precision steel squares (4745-1120) for checking 45° angles on fixtures.
Workpiece holding — INSIZE magnetic V-blocks (6889-2) for securing cylindrical parts during measurement.
Groove and recess measurement — INSIZE small point jaw calipers (1169-150) for measuring internal features.

INSIZE Products

3G Electric supplies INSIZE drop indicator backs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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INSIZE Magnetic Back: Magnetic Back, Insize 2318 Series (MPN 7331-M2). Key specifications — attr1183930: 0.53125 in x 2.125 in; attr1183928: 7331-M2; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Magnetic Back.
INSIZE
INSIZE Magnetic Back: Magnetic Back, Insize 2318 Series (MPN 7331-M2). Key specifications — attr1183930: 0.53125 in x 2.125 in; attr1183928: 7331-M2; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Magnetic Back.
INSIZE Flat Back: Flat Back, Insize 2304 Series (MPN 7330-F4). Key specifications — attr1183928: 7330-F4; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2304 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back, Insize 2304 Series (MPN 7330-F4). Key specifications — attr1183928: 7330-F4; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2304 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Flat Back: Flat Back, Insize 2326 Series, Insize 2326-3/Insize 2326-4 (MPN 7330-F3). Key specifications — attr1183928: 7330-F3; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2326 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back, Insize 2326 Series, Insize 2326-3/Insize 2326-4 (MPN 7330-F3). Key specifications — attr1183928: 7330-F3; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2326 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Flat Back: Flat Back (MPN 7330-F5). Key specifications — attr1183930: 2.0625 in x 1 in; attr1183928: 7330-F5; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2112 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back (MPN 7330-F5). Key specifications — attr1183930: 2.0625 in x 1 in; attr1183928: 7330-F5; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2112 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Lug Back: Lug Back, Insize 2887 Series/Insize 2890 Series (MPN 7330-L8). Key specifications — attr1183930: 1.339 in x1.339 in x0.079 in; attr1183928: 7330-L8; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2890 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back, Insize 2887 Series/Insize 2890 Series (MPN 7330-L8). Key specifications — attr1183930: 1.339 in x1.339 in x0.079 in; attr1183928: 7330-L8; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2890 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE Lug Back: Lug Back, Insize 2301 Series (MPN 7330-L2). Key specifications — attr1183930: 2.087 in x2.087 in x 0.110 in; attr1183928: 7330-L2; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2301 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back, Insize 2301 Series (MPN 7330-L2). Key specifications — attr1183930: 2.087 in x2.087 in x 0.110 in; attr1183928: 7330-L2; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2301 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.

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INSIZE Lug Back: Lug Back, Insize 2830 Series (MPN 7330-L7). Key specifications — attr1183930: 1.831 in x1.831 in x0.079 in; attr1183928: 7330-L7; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2830 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back, Insize 2830 Series (MPN 7330-L7). Key specifications — attr1183930: 1.831 in x1.831 in x0.079 in; attr1183928: 7330-L7; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2830 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE Flat Back: Flat Back (MPN 7330-F7). Key specifications — attr1183930: 1.831 in x1.831 in x 0.067 in; attr1183928: 7330-F7; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2892 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back (MPN 7330-F7). Key specifications — attr1183930: 1.831 in x1.831 in x 0.067 in; attr1183928: 7330-F7; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2892 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Lug Back: Lug Back, Insize 2318 Series (MPN 7330-L6). Key specifications — attr1183930: 2.126 in x2.126 in x0.079 in; attr1183928: 7330-L6; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back, Insize 2318 Series (MPN 7330-L6). Key specifications — attr1183930: 2.126 in x2.126 in x0.079 in; attr1183928: 7330-L6; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE Flat Back: Flat Back, Insize 2887 Series/Insize 2890 Series (MPN 7330-F8). Key specifications — attr1183930: 1.339 in x1.339 in x 0.067 in; attr1183928: 7330-F8; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2890 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back, Insize 2887 Series/Insize 2890 Series (MPN 7330-F8). Key specifications — attr1183930: 1.339 in x1.339 in x 0.067 in; attr1183928: 7330-F8; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2890 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Lug Back: Lug Back, Insize 2304 (MPN 7330-L4). Key specifications — attr1183930: 1.358 in x1.358 in x0.059 in; attr1183928: 7330-L4; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2304; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back, Insize 2304 (MPN 7330-L4). Key specifications — attr1183930: 1.358 in x1.358 in x0.059 in; attr1183928: 7330-L4; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2304; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE Lug Back: Lug Back (MPN 7330-L5). Key specifications — attr1183930: 2.087 in x2.087 in x0.098 in; attr1183928: 7330-L5; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2112 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE
INSIZE Lug Back: Lug Back (MPN 7330-L5). Key specifications — attr1183930: 2.087 in x2.087 in x0.098 in; attr1183928: 7330-L5; attr1183929: Lug-On-Center; attr1183933: Digital Indicators; attr1183934: Insize 2112 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Lug Back.
INSIZE Flat Back: Flat Back (MPN 7330-F2). Key specifications — attr1183930: 2.087 in x2.087 in x 0.110 in; attr1183928: 7330-F2; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2313 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back (MPN 7330-F2). Key specifications — attr1183930: 2.087 in x2.087 in x 0.110 in; attr1183928: 7330-F2; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2313 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE Flat Back: Flat Back, Insize 2318 Series (MPN 7330-F6). Key specifications — attr1183930: 2.15625 in x 0.0781 in; attr1183928: 7330-F6; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.
INSIZE
INSIZE Flat Back: Flat Back, Insize 2318 Series (MPN 7330-F6). Key specifications — attr1183930: 2.15625 in x 0.0781 in; attr1183928: 7330-F6; attr1183929: Flat Back; attr1183933: Digital Indicators; attr1183934: Insize 2318 Series; attr1183938: No; attr1183941: INSIZE; attr1183942: Flat Back.