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YG7 Tungsten Carbide Rotary Files, Customized 20-Piece Set
20-piece YG7 carbide rotary file set in a slotted case – grade-selected heads for long life on steel and cast iron.
Design and Construction
Twenty rotary file heads ground from YG7-grade tungsten carbide – the fine-grain, high-wear-resistance grade – arranged in a slotted transparent case. Head profiles span cylinder, ball, tree and flame families; slot layout exposes a missing piece instantly.
How It Works
YG7 fine-grain carbide holds its edge longer on abrasive cast iron and hardened steel than coarser grades; crossed flutes shear small chips at 6,000-50,000 RPM.
Applications
Machine maintenance, die repair, fabrication rework and foundry touch-up.
Field Cases
- Die shop: YG7 heads outlasted the previous YG8 set noticeably on hardened 45 HRC clamp work.
- Maintenance: the slotted case made monthly inventory a 10-second glance.
- Fabricator: twenty shapes covered a shutdown job without a single emergency purchase.
Performance Data
| Metric | Value / Observation |
|---|---|
| Grade | YG7 fine-grain tungsten carbide |
| Head hardness | About 1,400-1,500 HV (YG7 class) |
| Set size | 20 heads |
| Case | Slotted transparent, head-to-slot |
Suitable Materials
Steel, cast iron, stainless steel and non-ferrous metals.
Material Comparison: YG7 vs YG8 vs YG6 Carbide Grades
What the grade number changes – typical industry data:
| Property | YG7 (this set) | YG8 | YG6 |
|---|---|---|---|
| Grain size | Fine – highest wear resistance | Coarse – highest toughness | Sub-micron class |
| Hardness | Highest of the three | Lower | High |
| Best zone | Hardened steel, abrasive cast iron | Impact work, rough fettling | Precision finishing |
| Edge life on 45 HRC | Longest | Shorter | Long |
| Cost | Premium | Lower | Premium |
Delivery Scope
20 heads in slotted case; custom head selection available.
Why Choose VPOINT
Grade selection plus slot discipline – the set stays complete and cuts longer.
Precision & Quality Control
Grade certified per batch; each head runout-checked.
Specifications
Set information:
| Item | Specification |
|---|---|
| Grade | YG7 |
| Set | 20 heads |
| Shank | 6 mm (1/4″) |
| Case | Slotted transparent |
Frequently Asked Questions
Why YG7?
Fine-grain grade with the best wear resistance of the common YG grades – ideal for hardened and abrasive work.
Can I swap grades?
Yes – YG8 for impact work is available on custom sets.
Are all 20 shapes different?
The set spans the main families with size variants.
Case replacement?
Available separately.
Custom marking?
Laser marking on wholesale orders.
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