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STARRETT Magnetic-Base Indicator Holder: Magnetic-Base Indicator Holder, Rigid Arm - Magnetic Base Indicator Holders
STARRETTMagnetic Base Indicator Holders

STARRETT Magnetic-Base Indicator Holder: Magnetic-Base Indicator Holder, Rigid Arm

The STARRETT 657A Magnetic-Base Indicator Holder is a rigid-arm magnetic base indicator holder with a Fine Adjust Base (FAB) and an On/Off Knob. Its magnetic base measures 1-7/8 in L x 1.625 in W x 1-15/16 in H and…

SKU 3G-OTH-231408

Brand
STARRETT
Item
Magnetic-Base Indicator Holder: Magnetic-Base Indicator Holder, Rigid Arm
Category
Magnetic Base Indicator Holders
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Technical Specifications

STARRETT
Manufacturer Part Number
657A
Type
Rigid Arm, Magnetic Base
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STARRETT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The STARRETT 657A Magnetic-Base Indicator Holder is a rigid-arm magnetic base indicator holder with a Fine Adjust Base (FAB) and an On/Off Knob. Its magnetic base measures 1-7/8 in L x 1.625 in W x 1-15/16 in H and features a 1/4"-20 thread.

Frequently Asked Questions

What is the STARRETT 657A Magnetic-Base Indicator Holder used for?

The STARRETT 657A is used in precision machining and inspection to hold dial indicators or test indicators securely against a workpiece. Its magnetic base attaches to ferrous surfaces, and the rigid arm with Fine Adjust Base (FAB) enables fine positioning for accurate measurements in manufacturing and quality control.

What are the specifications of the STARRETT 657A Magnetic-Base Indicator Holder?

The STARRETT 657A has a magnetic base measuring 1-7/8 in L x 1.625 in W x 1-15/16 in H with a 1/4"-20 thread. It features a Fine Adjust Base (FAB) for precise positioning and an On/Off Knob to control the magnetic hold. The rigid arm design ensures stability during indicator setup.

Where to buy the STARRETT 657A Magnetic-Base Indicator Holder worldwide?

3G Electric supplies the STARRETT 657A Magnetic-Base Indicator Holder worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this precision tool to support your operations.

How to install the STARRETT 657A Magnetic-Base Indicator Holder?

To install the STARRETT 657A, clean the mounting surface, then turn the On/Off Knob to the ON position to activate the magnetic base. Attach the base to a ferrous surface, position the indicator in the 1/4"-20 threaded holder, and use the Fine Adjust Base (FAB) for precise alignment. Always verify stability before use.

Used in

Common applications for STARRETT
Structural steel fabrication — TENNAX™-PRO bi-metal band saw blades for cutting beams and channels
Stainless steel pipe cutting — Advanz™ CS carbide-tipped band saw blades for abrasive material
Aluminum extrusion cutting — Duratec™ SFB carbon steel band saw blades for soft metals
General metalworking maintenance — Intenss™ PRO-DIE high-speed steel band saw blades for mixed metals
Hard alloy tool steel cutting — Intenss™ PRO bi-metal band saw blades with hook edge
Wood and non-ferrous material sawing — Duratec™ SFB carbon steel blades for multi-material shops

STARRETT Products

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

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STARRETT Magnetic-Base Indicator Holder: Magnetic-Base Indicator Holder, Articulating Arm (MPN 660). Key specifications — attr1184043: STARRETT; attr1200946: Magnetic-Base Indicator Holder; attr1184025: Fine Adjust Base (FAB); attr1184013: 660; attr1184031: On/Off Knob; attr1184022: Magnetic; attr1184027: 1.375 in L x 1.375 in W x 1.1875 in H; attr1184030: 1/4"-20.
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STARRETT Magnetic-Base Indicator Holder: Magnetic-Base Indicator Holder, Articulating Arm (MPN 657-2). Key specifications — attr1184043: STARRETT; attr1200946: Magnetic-Base Indicator Holder; attr1184013: 657-2; attr1184031: On/Off Knob; attr1184022: Magnetic; attr1184027: 1-7/8 in L x 1.625 in W x 1-15/16 in H; attr1184030: 1/4"-20.