Spi 12-436-2 Drop Indicator Contact Point 4-48 Thread

Product Description

The SPI 12-436-2 is a steel drop indicator contact point designed for use with dial depth gages in precision measurement applications. Threaded at 4-48 and measuring 0.078 inches in diameter with a 1-inch contact point length, this replacement tip provides the accurate ground contact needed for reliable depth readings. It conforms to AGD Group 2 industry standards and includes a travel indicator feature. Machinists, quality control technicians, and tool and die professionals install this type of contact point when replacing worn or damaged tips on dial depth gage setups.

This contact point is intended for use with the 13-190-4 Dial Depth Gage. It is suited to shop floor and inspection bench environments where precise depth measurement of bores, slots, and recessed features is required. The 4-48 thread size and AGD Group 2 designation make it a standard-format replacement in production and metrology settings.

Key Features

• Steel construction for durability in repeated contact measurement cycles
• 4-48 thread size for secure attachment to compatible depth gage spindles
• 0.078-inch contact point diameter for fine, localized measurement contact
• 1-inch contact point length for adequate reach into recessed features
• Conforms to AGD Group 2 industry designation
• Includes travel indicator

Compatibility

Designed for use with the SPI 13-190-4 Dial Depth Gage. The 4-48 thread and AGD Group 2 designation are consistent with standard dial depth gage contact point specifications.

Installation Notes

Installation is performed by metrology technicians or machinists using standard contact point wrenches or pin spanners appropriate to the gage spindle. Zero the gage after replacing the contact point to confirm accurate reference. Handle the contact tip carefully to avoid nicking the contact surface, as surface damage will affect measurement accuracy. Follow the gage manufacturer guidelines for thread engagement torque ranges when they are available in the product documentation.