The SCREW SLOT FILES 10320630 is a precision Friedr. Dick GmbH Screw Joint File #4 (.025"), engineered specifically for gunsmiths and fine metalworkers who need to restore or deepen screw slots with absolute control. Part of the renowned Friedr. Dick screw slot file line, this German-made steel joint file is designed to cut only on its edges, allowing you to deepen a screw slot without widening it—essential when working on classic firearms, high-end custom builds, or fine machinery. Brownells+2Brownells Schweiz+2
If you’ve been searching for a high-quality screw slot file that helps you achieve perfect, square slots instead of ragged, over-filed channels, the Friedr. Dick SCREW SLOT FILES 10320630 (#4, .025") deserves a permanent place on your bench.
Precision Joint File – Deepen the Slot Without Widening It
The 10320630 model is a Joint style screw slot file, optimized for very specific, delicate work:
Style: Joint File – cuts on the edges only, with smooth flat faces. Brownells+1
Designed to deepen existing screw slots while keeping their width constant, so you don’t ruin carefully machined shoulders. Primary Tactical+1
Ideal when you need to restore damaged or shallow slots on firearm screws without making them loose-fitting or cosmetically oversized.
Pair it with an Equalling file (sold separately) to square and clean the sides after depth correction, but for controlled deepening, this #4 Joint file is the tool you reach for first. Primary Tactical+1
#4 Size – .025" Thickness for Medium Screw Slots
The SCREW SLOT FILES 10320630 corresponds to:
Model: #4 Screw Joint File
Thickness: Approx. .025" – suited to medium-width screw slots commonly found on many rifles, shotguns, and handguns. Brownells Schweiz+1
Perfect middle-ground size for a broad range of American and European firearm screws, as well as precision hardware in other mechanical work.
This makes the #4 Joint file extremely versatile—thin enough for detailed gun work, yet robust enough for regular shop use when handled properly.
High-Quality Steel Construction – Built for Fine Gunsmithing
Friedr. Dick’s screw slot files are known for their high-grade steel and fine tooth pattern:
Material: High-quality hardened steel, designed for precise, controlled cutting. Brownells+2Brownells Schweiz+2
Length: Around 5.63"–5.75", making it compact and easy to maneuver in tight spaces on actions, stocks, and small parts. Brownells UK+2Brownells Schweiz+2
Fine, uniform teeth for smooth cutting action that won’t chatter or grab when used correctly with proper support and lubricant.
These features make the 10320630 Joint file ideal for professional gunsmiths and serious hobbyists who demand consistent, predictable performance from their tools.
Designed for Delicate, Professional Screw Slot Work
Creating and restoring screw slots is a delicate operation—especially when the screws are part of valuable or historic firearms:
Perfect for cleaning up buggered screw heads on vintage rifles, shotguns, 1911s, and other classic platforms. Brownells+1
Helps restore crisp, square slot edges, improving both function and appearance.
Essential for custom builds and restoration work, where the standard of fit and finish must be professional-grade.
Instead of replacing original screws or leaving damaged hardware visible, you can surgically deepen and refine the existing slots using a purpose-built tool.
Ideal for Gunsmiths, Custom Shops & Restoration Specialists
The SCREW SLOT FILES 10320630 is especially useful in:
Full-service gunsmithing shops that regularly deal with damaged screw heads on customers’ firearms.
Restoration projects, where maintaining original screws and hardware is part of preserving authenticity.
Custom and high-grade builds, where screw slots must look as good as the metalwork around them.
With this file, you can confidently tackle screw slot jobs that would be risky or crude with a standard flat file.
Very Thin, Precision Tool – Handle With Care
Because screw slot files are designed for extremely fine work, they are intentionally thin:
Manufacturer and distributor notes emphasize that these files are very thin and can be easily bent or broken if misused. Brownells UK+2Brownells+2
Use with light, controlled pressure and good support on the workpiece to extend tool life.
Treat it like the precision instrument it is, and it will reward you with clean, accurate results for years of careful use.
Key Specifications – SCREW SLOT FILES 10320630
From Friedr. Dick/Brownells listings and product data: Brownells+3Brownells+3Brownells UK+3
Brand: Friedr. Dick GmbH
Product Line: Screw Slot Files
Model Number: 10320630
Style: Screw Joint File (cuts on edges only)
Size: #4
Thickness: Approx. .025"
Length: Approx. 5.63" (14.3 cm)
Material: High-quality steel
Use: Deepening and restoring screw slots without increasing slot width
Typical Users: Gunsmiths, metalworkers, restoration specialists
(Exact thickness and length tolerances are set by the manufacturer; always verify if you need a specific dimension for highly specialized work.)
Why Choose the Friedr. Dick SCREW SLOT FILES 10320630?
You should add this #4 screw joint file to your toolkit if you:
Regularly work on firearm screws and precision hardware and want the right tool for fine slot work.
Need to deepen screw slots without widening them, especially on valuable or tightly fitted components.
Appreciate the quality and reputation of Friedr. Dick for high-end, gunsmith-focused files.
Are upgrading from improvised or general-purpose files to purpose-built screw slot tools for more professional results.
For any gunsmith or meticulous firearm hobbyist, the SCREW SLOT FILES 10320630 – Friedr. Dick Screw Joint File #4 (.025") is a precision tool that turns difficult screw slot jobs into controlled, repeatable operations with a clean, factory-like finish.
The End
