Value Collection CMI11140 Micro Drill Chuck Adapter

Product Description

The VALUE COLLECTION CMI11140 is a straight shank micro drill chuck adapter designed to extend the versatility of drilling setups requiring precision at small scales. With a shank diameter of 0.5 inches (decimal equivalent 0.1575 inches per the manufacturer specification), this adapter interfaces between a machine spindle and a micro drill chuck, allowing fine-diameter tooling to be held securely. It is a compact, single-piece component suited for machine shop environments, toolroom work, and precision drilling applications where standard chuck sizes are too large for the required tooling.

This adapter is intended for use in benchtop drill presses, milling machines, or similar equipment where a straight shank mounting is compatible with the spindle or chuck assembly. It is commonly installed by machinists, tool-and-die technicians, and precision fabricators working with micro drill bits or small-diameter rotary tooling. The straight shank design allows straightforward insertion into a collet or drill chuck without the need for a tapered interface.

Key Features

• Straight shank configuration for direct insertion into compatible spindles or collets
• 0.5 inch shank diameter for broad machine compatibility
• Compact adapter form factor suited for micro drill chuck mounting
• Lightweight at 0.16 pounds for reduced spindle load
• Single-piece construction for straightforward installation and removal

Compatibility

Designed as an OEM-style replacement or supplemental adapter for drilling setups that accept a straight shank interface in the 0.5 inch shank diameter range.

Installation Notes

Installation should be performed by a qualified machinist or technician familiar with rotary tooling and spindle interfaces. Power down and fully de-energize the machine before inserting or removing the adapter. Verify that the shank diameter matches the collet or chuck bore exactly before tightening to avoid runout or slippage during operation. Do not use excessive force when seating the shank, as this can damage the chuck mechanism or the adapter itself.