Value Collection 6605-4040 Dial Drop Indicator

Product Description

The VALUE COLLECTION 6605-4040 is a dial drop indicator designed for precise linear measurement in machine shop, toolroom, and metrology applications. It reads in English units with a 0.25 inch total measurement range, a 0-100 dial reading, and a 0.001 inch graduation per division, allowing technicians to detect surface variation, runout, and alignment deviation with reliable repeatability. The 1-37/64 inch diameter white dial face provides clear readability. A built-in revolution counter tracks full plunger cycles, reducing the chance of misreading accumulated travel. Licensed machinists, tool-and-die makers, and precision measurement technicians use this indicator for setup, inspection, and quality-control tasks.

The 6605-4040 suits general-purpose measurement tasks where 0.001 inch resolution is the required tolerance tier. The lug back mount allows attachment to a variety of standard indicator holders, magnetic bases, and surface gauge arms. It is well-suited for checking workpiece flatness, spindle runout, fixture alignment, and part-to-part consistency on manual mills, lathes, surface plates, and inspection fixtures in both production and job-shop environments.

Key Features

• 0.25 inch measurement range for short-travel drop indicator applications
• 0.001 inch dial graduation for precise linear displacement readings
• 0-100 dial reading scale in English units
• 1-37/64 inch white dial face for clear, unobstructed viewing
• Revolution counter tracks full plunger cycles to prevent misreading
• Lug back mount compatible with standard indicator holders and magnetic bases

Compatibility

Designed as a general-purpose drop indicator compatible with standard lug-back indicator holders, magnetic bases, and surface gauge arms that accept the lug-mount style.

Installation Notes

Installation is performed by machinists or precision measurement technicians using a compatible indicator holder or magnetic base. Secure the lug back firmly before zeroing the dial to prevent movement during measurement. Ensure the plunger axis is perpendicular to the measurement surface to avoid cosine error and inaccurate readings. Handle the indicator carefully to protect the precision internal mechanism from shock or debris.