Square Files are precision hand tools specifically designed for filing square holes, slots, keyways, and sharp internal corners. With four flat cutting faces and a square cross-section, they provide controlled, even material removal while maintaining accurate 90-degree angles.
Manufactured from high-quality carbon steel or alloy steel and precision heat-treated, square files are widely used in machining workshops, mechanical assembly, tool and die making, and maintenance operations where dimensional accuracy is critical.
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Product Details
The square file is a metal cutting and grinding hand tool. It is made of carbon tool steel T12 (1095, Cr06, 130Cr2) with a carbon content of 1.15%-1.25%. The product hardness is HRC60-65. It is suitable for metals and hard non-metals. Cutting and grinding of articles. It is produced in accordance with GB 5803-5815, GB/T 806, American standard GGG-F-325b, and European standard DIN6261-7285. The products are produced through processes such as hot forging, grinding, tooth cutting, quenching, and surface sandblasting.
Technical Specifications
|
Parameter |
Description |
Hardness |
HRC 60-65 |
|
Product Type |
Square File |
Application |
Metal, Wood |
|
Cross Section |
Square |
Surface Finish |
Polished / Black Oxide |
|
Cut Types |
Double Cut |
Standard |
DIN / GB |
|
Length |
4" /6" / 8" / 10" / 12"/14"/16" |
OEM / ODM |
Supported |
|
Material |
Carbon Steel / Alloy Steel |
| GB | DIN | ||||
| Inch | mm(L) | mm(b) | Inch | mm(L) | mm(b) |
| 4" | 100 | 3.8 | 4" | 100 | 3.8 |
| 6" | 150 | 5.8 | 6" | 150 | 5.8 |
| 8" | 200 | 6.6 | 8" | 200 | 7.8 |
| 10" | 250 | 8.6 | 10" | 250 | 9.8 |
| 12" | 300 | 10.6 | 12" | 300 | 11.8 |
| 14" | 350 | 13.5 | 14" | 350 | 13.5 |
| 16" | 400 | 17.5 | |||
Key Features
Four cutting faces for uniform filing
Sharp, well-defined edges for accurate corner work
Stable hardness ensures consistent cutting performance
Suitable for both rough filing and precision finishing
Strong resistance to wear and deformation
Applications
Filing square holes and rectangular openings
Shaping keyways and slots
Cleaning sharp internal corners
Fitting mechanical components
Tool and die maintenance
How to Choose the Right Square File
Single Cut
Finishing work and fine adjustment
Double Cut
Faster stock removal for rough filing
Short Length (6”–8”)
Precision and control
Long Length (10”–12”)
Higher efficiency on larger parts
Why Choose Our Square Files
Precision tooth geometry
Strict batch hardness control
Complete size and cut range
Reliable OEM and bulk supply capability
80 Years of Manufacturing Excellence· Trusted by Global Clients· One-Stop File Solutions
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