Indicol Workholding Tools

Indicator Holders From Indicol

Indicol indicator holders are a universal, time-saving solution for dial test indicators. Using a sturdy C-frame clamp, Indicol holders mount directly to your machine quill extension for precision measurement without disturbing the cutting tool.

Workholding Tools from JT&M

Indicol holders from Janesville Tool & Manufacturing are proudly manufactured in the USA and backed by decades of industry expertise since 1959. In addition to standard models, JT&M offers custom capabilities to meet unique machining requirements, ensuring the right fit for your application. With U.S.-based support and a commitment to quality, you can count on reliable products, knowledgeable service and solutions built to perform in demanding shop environments.

Indicol Indicator Support Use

Indicol holders are designed to hold a dial test indicator securely in place for machine setup, alignment and measurement tasks. They save time by allowing you to take readings without removing the cutting tool. Clamp-on indicator holders from Indicol are attached to the head of your milling machine using a C-clamp, allowing you to measure without obstructing the path of the cutting tool.

Universal Indicator Holder

Indicol holders are designed to universally support milling machine quills and can be easily adapted to different machine setups thanks to their C-frame clamp design. Multiple sizes are available to match your machine quill and dial indicator type. Contact us if you need help selecting the correct size for your setup.

Indicol Tools for Milling Machine Applications

Janesville Tool & Manufacturing offers a variety of Indicol indicator holders to fit any application.

Indicol Holders for Workpiece Alignment

Indicol holders make workpiece alignment faster and more precise by allowing you to take accurate readings without removing your cutting tool. This helps properly position your material before machining, reducing setup time and improving overall accuracy.

Indicol Holders for Bridgeport-type Milling Machine Set Up

Designed for compatibility with Bridgeport-style milling machines, Indicol holders mount directly to the quill for quick and stable setup. Their C-frame clamp design allows for easy positioning, making machine setup more efficient and repeatable.

Indicol Holders for Concentricity Testing

Indicol holders are ideal for checking concentricity by securely holding a dial test indicator in place while measuring runout. This allows machinists to verify the workpiece is properly centered relative to the spindle, improving machining precision.

Indicol Holders for Spindle Squaring

With Indicol holders, spindle squaring becomes a straightforward process. By holding the indicator steady during measurement, they help ensure the spindle is properly aligned and perpendicular to the machine table, which is critical for accurate machining results.

Measurements Using Indicol

Each indicator is capable of performing three types of readings:

1. Concentricity of the workpiece relative to the spindle centerline
2. Edge alignment with the machine table’s longitudinal or transversal movement
3. Spindle perpendicularity relative to the machine table surface

Installing Your Indicol Holder:

Janesville Tool Indicol holders are friction-mounted at the frame pivot and articulations of their linkage. This allows you to mount directly on your machine. Indicol Holders are typically mounted on:

• Machine quill extension
• Spindle nose
• The tool holder of your milling machine

Indicol Parts

Indicol models, 138, 178 & 200 from the NP Products Division of Janesville Tool & Manufacturing are comprised of the following parts to be assembled for your application.

• Steel Bushing & Nylon Shoulder Bushing (Assembled)
• Indicator Clamp
• Indicator Pin
• Nylon Washer (3/32 thick)
• Link Anodized
• Short Puller
• Nylon Washer (1/32 thick)
• Knurled Knob (3/4 Dia.)
• Pivot with set screw No. 21
• Nylon Brake Washer
• Spring Washers
• Nylon Collets
• Extension Rod
• Frame, "C" Clamp Anodized
• Pad & Shoe (Assembled)
• Pressure Screw No. 20 With Knob No. 01

Frequently Asked Questions About Indicol Holders

How do you use an Indicol holder?

Mount the Indicol holder to your machine quill using the C-frame clamp, then attach your dial test indicator. Position the indicator for your desired measurement and tighten the pressure screw to secure it. The holder can be easily adjusted or pivoted to check concentricity, alignment or spindle perpendicularity.

What makes Indicol holders different from other indicator holders?

Indicol holders feature a three-point bearing design for enhanced stability and consistent accuracy. Their friction-mounted pivots allow for quick adjustments and repeatable positioning, helping reduce setup time compared to traditional indicator holders.

Do Indicol holders work with all dial indicators?

Indicol holders are compatible with most standard dial test indicators. For specialty or non-standard indicators, it’s best to verify fit or contact us to confirm proper compatibility with your setup.

Can Indicol holders be used for runout measurement?

Yes, Indicol holders are commonly used to measure runout and concentricity. Their stable mounting and adjustable positioning make them ideal for accurate spindle and workpiece measurements.

What size Indicol holder do I need?

The correct Indicol holder size depends on your machine’s quill diameter and the type of dial test indicator you are using. Multiple sizes are available for a secure fit. If you’re unsure, contact us for help selecting the right model.

Customize your press/die set order with workholding & fixturing tools to perfect production processes.