Economy Rigid-Arm Magnetic-Base Indicator Holders
The magnetic base has a V-grooved bottom for mounting on flat and curved metal surfaces and a magnetic release switch for easy setups. Use the fine-adjustment knob for precise positioning of the arm.
Base | Upright Post | Arm | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | For Mounting Stem Dia. | Lg. | Wd. | Ht. | Thread Size  | Thread Pitch, mm | Material | Magnetic Pull, lbs. | Dia. | Ht. | Material | Lg. | Dia. | Features | Each | |
Lug and Stem Mount | ||||||||||||||||
| 1/4" | 3/8" | 2 5/8" | 2" | 2 15/16" | M8 | 1.25 | Cast Iron | 132 | 7/16" | 6.9" | Steel | 5 13/16" | 0.464" | Fine-Adjustment Arm, Magnetic-Release Switch | 0000000 | 000000 |
Starrett Rigid-Arm Magnetic-Base Indicator Holders
The magnetic base has a flat bottom for mounting on flat metal surfaces and a magnetic release switch for easy setups.
Fine-adjustment attachment (sold separately) can be installed between the upright post and the base to give you more precise control over positioning.
Base | Upright Post | Arm | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | For Mounting Stem Dia. | Lg. | Wd. | Ht. | Thread Size | Material | Magnetic Pull, lbs. | Dia. | Ht. | Lg. | Dia. | Features | Manufacturer Model Number | Each | |
Lug and Stem Mount | |||||||||||||||
| 1/4" | 1/4" | 1 57/64" | 1 5/8" | 1 29/32" | 1/4"-20 | Steel | 75 | 3/8" | 7 5/16" | 6" | 0.25" | Magnetic-Release Switch | 657AA | 00000000 | 0000000 |
| Fine Adjustment Attachment | 00000000 | Each | 000000 |
Rigid-Arm Magnetic-Base Indicator Holders
The magnetic base has a V-grooved bottom for mounting on flat and curved metal surfaces and a magnetic release switch for easy setups.
Holders with fine-adjustment arm give you more precise control over the arm position.
For technical drawings and 3-D models, click on a part number.
Base | Upright Post | Arm | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | For Mounting Stem Dia. | Lg. | Wd. | Ht. | Thread Size | Thread Pitch, mm | Material | Magnetic Pull, lbs. | Dia. | Ht. | Material | Lg. | Dia. | Features | Each | |
Lug and Stem Mount | ||||||||||||||||
| 1/4" | 5/32"-1/4" | 2.559" | 1.97" | 2.165" | M8 | 1.25 | Cast Iron | 176 | 7/16" | 6 7/8" | Steel | 6 1/2" | 0.375" | Fine-Adjustment Arm, Magnetic-Release Switch | 0000000 | 000000 |
| 1/4" | 5/32"-1/4" | 2.559" | 1.97" | 2.165" | M8 | 1.25 | Cast Iron | 176 | 7/16" | 6 7/8" | Steel | 6 1/2" | 0.375" | Magnetic-Release Switch | 000000 | 00000 |
| 1/4" | 1/4"-5/16" | 2.953" | 1.97" | 2.165" | M8 | 1.25 | Cast Iron | 220 | 5/8" | 8 7/8" | Steel | 6 1/2" | 0.563" | Fine-Adjustment Arm, Magnetic-Release Switch | 0000000 | 00000 |
Rigid-Arm Magnetic-Base Indicator Holders for Uneven Surfaces
The base is comprised of adjustable magnetic pins which allow it to conform to any shape and grip most metal surfaces. Use the fine-adjustment knob to precisely position the arm.
Base | Upright Post | Arm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | For Mounting Stem Dia. | Lg. | Wd. | Ht. | Thread Size | Thread Pitch, mm | Material | Magnetic Pull, lbs. | Dia. | Ht. | Material | Lg. | Dia. | Material | Features | Each | |
Lug and Stem Mount | |||||||||||||||||
| 1/4" | 5/32"-3/8" | 1 15/16" | 1 5/8" | 2 7/8" | M8 | 1.25 | Cast Aluminum | 120 | 15/32" | 7 1/16" | Steel | 3 1/2" | 0.469" | Steel | Fine-Adjustment Arm, Magnetic-Release Switch | 0000000 | 0000000 |
Low-Profile Magnetic-Base Indicator Holders
Use this holder in areas with limited space. It has a nut and bolt for holding a 1/4” lug-back indicator. The magnetic base has a V-grooved bottom for mounting on curved and flat metal surfaces and a magnetic-release switch for easy setups.
Base | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | Lg. | Wd. | Ht. | Material | Magnetic Pull, lbs. | Thread Size | Features | Each | |
Lug Mount | |||||||||
| 1/4" | 3 1/2" | 1 1/8" | 1" | Steel | 50 | 8-32 | Magnetic-Release Switch | 000000 | 000000 |
Economy Weighted-Base Indicator Holders
Commonly used on workbenches, these stands have a heavy granite base for stability. They hold indicators in place for taking accurate readings.
Holder with fine-adjustment arm gives you more control over positioning.
Base | Upright Post | Arm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | Surface Accuracy | Throat Dp. | Type | Lg. | Wd. | Ht. | Thread Size | Thread Pitch, mm | Material | Dia. | Ht. | Material | Lg. | Flexibility | Features | Each | |
| 1/4" | ±0.0001" | 2 3/8" | Flat | 6" | 6" | 2" | 3/8"-16 | __ | Granite | 1 1/4" | 8" | Steel | 2 1/8" | Rigid | __ | 00000000 | 0000000 |
| 1/4" | ±0.0005" | 2 3/8" | Flat | 6" | 6" | 2" | M10 | 1.5 | Granite | 1" | 8" | Steel | 1 7/8" | Rigid | Fine-Adjustment Arm | 00000000 | 000000 |
Precision Weighted-Base Indicator Holders with Calibration Certificate
These holders come with a calibration certificate traceable to NIST states that the granite base has passed a test for surface accuracy. The extremely tight flatness tolerances of the granite allow for nearly frictionless workpiece movement and provide an accurate reference plane for inspection work.
Holders with jointed arm have a fine-adjustment knob for precise positioning.
Base | Upright Post | Arm | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Mounting Lug Hole Dia. | Surface Accuracy | Throat Dp. | Lg. | Wd. | Ht. | Thread Size | Material | Dia. | Ht. | Material | Lg. | Flexibility | Features | Each | |
| 1/4" | ±0.00005" | 1 3/4" | 6" | 6" | 2" | 1/2"-13 | Granite | 1 1/4" | 8" | Steel | 4 1/8" | Rigid | __ | 0000000 | 0000000 |
| 1/4" | ±0.0001" | 5" | 8" | 12" | 2" | 1/2"-13 | Granite | 1 1/4" | 12" | Steel | 7 5/16" | Jointed | Fine-Adjustment Arm | 0000000 | 000000 |
| 1/4" | ±0.0001" | 5" | 12" | 18" | 4" | 1/2"-13 | Granite | 1 1/4" | 12" | Steel | 7 5/16" | Jointed | Fine-Adjustment Arm | 0000000 | 00000000 |
Mitutoyo Dial Plunger-Style Variance Indicators with Magnetic-Base Holder
The magnetic base has a V-grooved bottom to provide a solid mount on flat and curved metal surfaces. It also has a magnetic release switch for easy setups.
Indicator has a continuous dial numbered clockwise around the face for direct measurements. A spring-loaded plunger retracts and extends to measure objects. Rotate the dial face for viewing at multiple angles.
Dial | Contact Point | Upright Post | Arm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Measuring Increments | Accuracy | Industry Designation | Indicator Mount. Stem Dia. | Mount. Lug Hole Dia. | Dia. | Reading | Head Dia. | Lg. | Mount. Thread Size | Base Magnetic Pull, lbs. | Dia. | Ht. | Lg. | Flexibility | Mfr. Model No. | Each | |
Lug and Stem Mount | ||||||||||||||||||
| 0"-1" | 0.001" | ±0.002" | AGD Group 2 | 3/8" | 1/4" | 2 1/4" | 0-100 | 0.118" | 1.366" | 4-48 | 135 | 1/2" | 7" | 6 1/2" | Rigid | 646PKA079B | 000000 | 0000000 |
Economy Dial Plunger-Style Variance Indicators with Magnetic-Base Holder
Place the magnetic base on metal surfaces for a solid mount. The base has a V-grooved bottom for mounting on flat and curved surfaces and magnetic release switch for easy setups. Use the fine-adjustment knob for precise positioning of the holder’s arm.
Indicator has a continuous dial numbered clockwise around the face for direct measurements. A spring-loaded plunger retracts and extends to measure objects. Rotate the dial face for viewing at multiple angles.
Dial | Contact Point | Upright Post | Arm | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Measuring Increments | Accuracy | Industry Designation | Indicator Mount. Stem Dia. | Mount. Lug Hole Dia. | Dia. | Reading | Head Dia. | Lg. | Mount. Thread Size | Base Magnetic Pull, lbs. | Dia. | Ht. | Lg. | Flexibility | Each | |
Lug and Stem Mount | |||||||||||||||||
| 0"-1" | 0.001" | ±0.001" | AGD Group 2 | 3/8" | 1/4" | 2 3/8" | 0-100 | 0.1" | 1/4" | 4-48 | 132 | 7/16" | 7" | 5 13/16" | Rigid | 00000000 | 000000 |
Dial Plunger-Style Variance Indicators with Magnetic-Base Holder
For a solid mount on metal surfaces, this indicator comes with a magnetic base. It has a continuous dial numbered clockwise around the face for direct measurements. A spring-loaded plunger retracts and extends to measure objects.
Dial | Contact Point | Upright Post | Arm | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Measuring Increments | Accuracy | Industry Designation | Indicator Mount. Stem Dia. | Mount. Lug Hole Dia. | Dia. | Reading | Head Dia. | Lg. | Mount. Thread Size | Base Magnetic Pull, lbs. | Dia. | Ht. | Lg. | Flexibility | Each | |
Lug and Stem Mount | |||||||||||||||||
| 0"-1" | 0.001" | ±0.002" | AGD Group 2 | 3/8" | 1/4" | 2 1/4" | 0-100 | 1/4" | 1/4" | 4-48 | 45 | 5/16" | 4" | 4 1/2" | Rigid | 0000000 | 0000000 |
Dial Plunger-Style Variance Indicators with Precision Weighted-Base Holder
Mount
Side View
A granite base stabilizes these indicators. The extremely tight flatness tolerances of the granite allow for nearly frictionless workpiece movement and provide an accurate reference plane for inspection work.
Indicators have a continuous dial numbered clockwise around the face for taking direct measurements. Rotate the dial face for viewing at multiple angles. All come with calibration certificates traceable to NIST that state the indicator and the granite base have passed a test for accuracy. They have jeweled bearings that are highly sensitive and wear resistant for a long service life.
Holders with jointed arm have a fine-adjustment knob for precise positioning of the indicator.
Dial | Contact Point | Upright Post | Arm | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Measuring Increments | Accuracy | Industry Designation | Indicator Mount. Stem Dia. | Mount. Lug Hole Dia. | Dia. | Reading | Head Dia. | Lg. | Mount. Thread Size | Dia. | Ht. | Lg. | Flexibility | Throat Dp. | Granite Base Flatness Tolerance | Each | |
| 0"-1.000" | 0.001" | ±0.001" | AGD Group 2 | 3/8" | 1/4" | 2 1/4" | 0-100 | 3/16" | 1/4" | 4-48 | 1 1/4" | 8" | 4 1/8" | Rigid | 1 3/4" | ±0.00005" | 0000000 | 0000000 |
| 0"-1.000" | 0.001" | ±0.001" | AGD Group 2 | 3/8" | 1/4" | 2 1/4" | 0-100 | 3/16" | 1/4" | 4-48 | 1 1/4" | 12" | 7 5/16" | Jointed | 5" | ±0.0001" | 0000000 | 000000 |
Economy Electronic Plunger-Style Variance Indicators with Magnetic-Base Holder
A magnetic base provides a solid mount on metal surfaces. It has a V-grooved bottom for mounting on flat and curved surfaces and a magnetic release switch for easy setups. Use the fine-adjustment knob for precise positioning of the holder’s arm.
The indicator has a spring-loaded plunger that retracts and extends to measure objects. It has zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off. A zero-set button lets you start measuring at any point, and a go/no-go operation indicates when measurements fall outside your set tolerance.
Measuring Range | Measuring Increments | Accuracy | Contact Point | Base | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric, mm | Inch | Metric, mm | Inch | Metric, mm | Industry Designation | Mount. Stem Dia. | Mount. Lug Hole Dia. | Head Dia. | Lg. | Mount. Thread Size | Lg. | Wd. | Magnetic Pull, lbs. | Arm Flexibility | Batteries Included | SPC Data Output | Each | |
Lug and Stem Mount | |||||||||||||||||||
| 0"-1" | 0-25 | 0.0005" | 0.01 | ±0.001" | ±0.03 | AGD Group 2 | 3/8" | 1/4" | 0.2" | 0.3" | 4-48 | 2 11/32" | 1 13/16" | 85 | Rigid | Yes | No | 0000000 | 0000000 |
| Replacement Battery (1 per Pkg.) | 0000000 | Pkg. | 00000 |