Tool wrap is thin stainless steel foil used to wrap tool steel parts, such as dies, punches, cutters and knives, before they go into a heat-treating furnace.
What it does
The foil envelope shields the part’s surface from the furnace atmosphere, helping prevent scale (oxidation) and decarburization. Parts come out cleaner and need less grinding or finishing.
Tool wrap is also used to protect parts during brazing and other high-temperature work.
Why 321 stainless
Our tool wrap is Type 321 stainless, a titanium-stabilized grade suited to high temperatures. It’s supplied annealed, so it’s soft and easy to fold and crimp into a tight wrap around the part.
| Alloy | Thickness | Width | Roll lengths |
|---|---|---|---|
| 321 stainless, annealed | .002″ | 24″ | 50 ft and 100 ft |
Where to buy it
321 tool wrap is available online from our Sidecuts.com store and ships in 1–2 business days.
Follow your heat-treat process and the tool steel producer’s recommendations for times, temperatures and when to use tool wrap.