Stanley 21-106 Mill Bastard File 8 Inches

Product Description

The STANLEY 21-106 is an 8-inch mill bastard file designed for general-purpose metal filing, deburring, and surface finishing on ferrous and non-ferrous metals. Mill bastard files use a single-cut tooth pattern at a medium coarseness grade, making them well-suited for draw filing, sharpening saw blades, and smoothing rough stock. At 0.46 pounds, the 21-106 is lightweight enough for extended hand use without fatigue. Machinists, pipefitters, ironworkers, and field service technicians routinely keep a mill bastard file on hand for fit-and-finish work on fabricated parts and pipe ends.

This file is appropriate for both shop and field use across trades that require metal finishing. Common applications include cleaning up burrs on cut pipe, dressing mating surfaces on flanges, removing weld spatter, and fine-tuning the fit of machined components. The 8-inch length provides a practical working surface for medium-scale filing tasks without requiring a vise or bench fixture, though bench use with a vise improves control and results on precision work.

Key Features

• 8-inch file length suited for medium-scale metal finishing and deburring tasks
• Mill bastard cut provides medium coarseness for efficient material removal with reasonable surface finish
• Single-cut tooth pattern supports draw filing technique for smoother results
• Lightweight at 0.46 pounds for reduced hand fatigue during extended use
• Suitable for ferrous and non-ferrous metals including steel, cast iron, brass, and aluminum

Compatibility

Designed as a general-purpose hand file compatible with standard file handles sized for 8-inch files. No specific system or equipment compatibility is stated by the manufacturer for this SKU.

Installation Notes

Always seat the file tang fully into a properly sized file handle before use to prevent hand injury from an exposed tang. File in one direction only, applying pressure on the forward stroke and lifting slightly on the return to extend tooth life. Secure workpieces in a vise whenever possible to maintain control and improve cut quality. Inspect the file regularly for clogging and use a file card or brush to clear metal filings from the teeth.

Technical Specifications

• Length: 8 inches
• Cut Type: Mill Bastard
• Weight: 0.46 pounds
• UPC: 76174211061
• Unit of Measure: Each
• Minimum Order Quantity: 6

Standard Information

• Brand: STANLEY
• Manufacturer Part Number: 21-106