Value Collection 615-6250 Small Hole Gage Set 1/8 to 1/2 Inch

Product Description

The VALUE COLLECTION 615-6250 is a small hole gage set designed to measure internal diameters and bores in the 1/8 to 1/2 inch range. Each gage features a half ball style tip that contacts the bore wall and transfers the measurement to an outside micrometer for a precise reading. The set includes 5 gages covering the full measurement range and comes packaged in a fitted case for organized storage and transport. At 0.26 pounds total, the set is compact and field-portable. These tools are a standard in engine rebuilding, machining, and precision maintenance work where bore and hole sizing accuracy is required.

Small hole gages are used wherever internal diameters cannot be measured directly with a caliper jaw — valve guides, ports, bushings, and small bored housings are typical applications. This set is suited for machine shops, automotive service facilities, and industrial maintenance environments. The 5-piece configuration spans 1/8 to 1/2 inch, giving technicians coverage across the most common small bore sizes encountered in production and repair work. The included case keeps gages organized and protects the precision-ground half ball tips from damage between uses.

Key Features

• Measurement range: 1/8 to 1/2 inch across 5 gages
• Half ball style tip for positive, consistent bore contact
• Transfers measurement to an outside micrometer for accurate reading
• Includes fitted storage and transport case
• Lightweight at 0.26 pounds — practical for bench and field use
• 5-piece set provides incremental coverage across the full range

Compatibility

Designed as a general-purpose small hole gage set suitable for use in machine shops, automotive service, and industrial maintenance applications requiring internal bore measurement in the 1/8 to 1/2 inch range.

Installation Notes

Small hole gages are precision measuring instruments, not installation hardware. Machinists and mechanical technicians handle bore measurement using these gages in conjunction with a calibrated outside micrometer. Before use, ensure the gage tip is clean and free of burrs or debris that could affect contact. Store gages in the included case when not in use to protect the half ball tips and maintain measurement accuracy.