The SCREW SLOT FILES 10321030 is the Friedr. Dick GmbH Screw Joint File #6 (.040"), a precision tool engineered specifically for gunsmiths and fine metalworkers who need to create, deepen, or restore perfectly square, professional screw slots. Crafted in Germany from high-quality steel, this #6 screw joint file is designed to cut only on its edges, allowing you to deepen wider screw slots without widening them—ideal for larger firearm screws, action screws, and precision hardware. Primary Tactical+2Brownells UK+2
If you’ve been searching for a .040" screw slot file that gives you surgical control over slot depth on bigger screws, the Friedr. Dick SCREW SLOT FILES 10321030 deserves a permanent spot on your gunsmithing bench.
Precision Screw Joint File – Deepen Without Widening
The 10321030 model is a Screw Joint File—the go-to style when you need to deepen an existing slot while preserving its original width:
Style: Screw Joint File – cuts only on the narrow edges, with smooth, safe faces that don’t touch the slot sides. Brownells UK+2Brownells+2
Primary purpose: Deepen screw slots cleanly without making them wider, so the driver still fits perfectly. Brownells+1
Ideal for restoring damaged, shallow, or buggered slots on larger screws found in rifles, shotguns, lever guns, and other precision mechanisms.
For a complete, professional result, many gunsmiths pair this Joint File with a matching Equalling File (sold separately) to square the slot bottom and tidy up the sides—but for depth control, this #6 Joint File is the star of the show. Primary Tactical+2Brownells+2
#6 Size – .040" Thickness for Larger Screw Slots
This particular model is sized for wider screw heads and robust hardware:
Model / Size: #6 Screw Joint File
Thickness: Approx. .040" (1.0 mm) – suited for larger screw slots, such as guard screws, action screws, and bigger cap screws commonly used on long guns and heavy-duty hardware. LG Outdoors Website+2Brownells UK+2
Lets you work on big, high-torque screws while still maintaining precise control over the slot geometry.
If you already use the smaller #1–#5 screw joint files for fine work, this #6 (.040") size rounds out the set for bigger slots and more substantial fasteners.
German-Made Quality – High-Grade Steel & Fine Tooth Pattern
Friedr. Dick has a long reputation for producing top-tier files and gunsmithing tools, and the #6 Screw Joint File is no exception:
This level of quality ensures the file removes metal predictably and gently, a must when working near expensive finishes and critical surfaces.
Professional Results for Screw Slot Restoration
Screw slot work on firearms and instruments is subtle but highly visible—and a bad slot screams “amateur” immediately:
Perfect for cleaning up buggered or mangled screw slots on vintage rifles, classic shotguns, revolvers, and high-end 1911s. Brownells UK+2Brownells Deutschland+2
Helps restore crisp, straight, factory-style slots so screws once again look and function as they should.
Essential during restoration projects, where preserving original screws is preferable to replacing them, especially on collectible and historical pieces.
Instead of living with chewed-up screw heads—or risking more damage with generic files—you can surgically rehabilitate the slot using a tool built specifically for the job.
Ideal for Gunsmiths, Armorers & Precision Metalworkers
The SCREW SLOT FILES 10321030 shines in professional and advanced hobbyist environments:
Full-time gunsmith shops – for regular repairs on customer firearms, from scope mounts to action screws.
Custom and restoration work, where every visible screw must match the build quality of the rest of the gun.
Machinists and precision metalworkers who deal with high-end mechanisms, instruments, and fixtures that use slotted screws.
With the #6 Joint File in your kit, you’re equipped to handle larger screw slots with the same finesse you’d bring to tiny European slots and fine hardware.
Very Thin & Precise – Use with Care
Like all Friedr. Dick screw slot files, the #6 is intentionally thin to get into slots without removing excess material:
Manufacturer guidance emphasizes that these files are very thin and can be easily bent or broken if misused. Brownells UK+2Brownells UK+2
Always support the workpiece properly and use light, controlled pressure to avoid twisting or side-loading the file.
Treat it like a precision instrument, not a pry bar, and it will deliver years of clean, accurate cuts.
Key Specifications – SCREW SLOT FILES 10321030 (#6, .040")
From Brownells and other leading distributors: Brownells Deutschland+4LG Outdoors Website+4Brownells UK+4
Brand: Friedr. Dick GmbH
Product Line: Screw Slot Files
Type / Style: Screw Joint File (cuts on edges only)
Model / Size: #6
Thickness: Approx. .040"
Length: Approx. 5.63" (5-5/8")
Material: High-quality steel
MFR Part Number: 10321030
Typical Use: Deepening larger screw slots without widening them; gunsmithing & fine metalwork
(Exact thickness and length tolerances are set by Friedr. Dick; verify if you require ultra-precise dimensions for specialized work.)
Why Choose the Friedr. Dick SCREW SLOT FILES 10321030?
You should add this #6 (.040") screw joint file to your toolkit if you:
Work on larger firearm screws and heavy-duty hardware and need a precise way to deepen slots without altering their width.
Want a German-made, professional-grade file specifically engineered for screw slot work—not a generic flat file.
Are building a complete screw slot file set, and need the larger #6 size to complement smaller #1–#5 files.
Demand clean, factory-like results on every screw head you touch, whether for restoration, repair, or high-end custom builds.
For gunsmiths, armorers, and precision metalworkers who refuse to compromise on fit, finish, or function, the SCREW SLOT FILES 10321030 – Friedr. Dick Screw Joint File #6 (.040") is a must-have specialty tool that turns tricky slot work into controlled, professional operations.
The End
