Control Knife Heat Precisely with the KH 418 Evenheat Knife Oven
The Evenheat KH 418 Knife Heat Treat Oven gives you precise control for tempering knives, bits, and small tools. Its 18″ deep chamber with side-only heating elements ensures even heat from edge to spine, giving you exceptionally reliable tempering with minimized warping.
With a maximum temperature of 2200°F (1205°C), the KH 418 handles larger knives or multiple pieces in a single session. You can run it on standard 120V single-phase power without special wiring, and the lightweight 75 lb (34 kg) design lets you place it on a bench or move it easily. You get professional-level tempering results in a compact, accessible oven.
Multiple control options let you tailor every cycle to your workflow. The optional Loud Alarm alerts you at the end of a quench, while the door shield keeps the handle cooler and protects the firebrick. This gives you safer, repeatable results and confidence that every heat treat will meet your standards.
Key Features of the Evenheat KH 418 Knife Kiln
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120V North American Operation – Expect a heat-up of about 1–1½ hours to reach 1650 °F.
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Compact, Deep Chamber – 18″ D × 6.5″ W × 4.25″ H (0.29 cu. ft) accommodates larger knives or batches.
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Wrap-Around Element – Provides heating along the back wall for consistent, uniform temperature.
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High Heat Range – Reaches 2200 °F (1205 °C) for reliable tempering and annealing.
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Cool-Touch Handle – Front-mounted, phenolic, spring-loaded latch stays cool for safe, one-handed operation.
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Loud Alarm Output Jack – Connects to the optional Loud Alarm for an 80 dB alert, so you never miss a quench.
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Relay Access Port – Allows easy relay replacement via an access plate without removing the panel.
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Firebrick Construction – Insulates efficiently, stores heat, and releases it gently during soaking.
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Quiet Drive Solid State Relay (Now Standard) – Built-in SSR technology ensures precise control and longer element life.
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Door Shield – Protects the firebrick and reduces heat at the door and handle for safer operation.
Additional Options for the KH 418 Electric Heat Treat Oven
🗡 MK1 Blade Fixture
Designed for KH models, this fixture securely holds up to four blades for safe and precise heat treatment.
🛢 Quench Tank
Sturdy welded construction with bolt-on feet, 24″ deep × 26″ tall. Holds 3 gallons and features 6″ square steel tubing (0.120″ wall), a 5.75″ square opening, ⅛″ steel lid, and durable welded handles.
Who We Are
Modern Potters is women-owned and operated. We're all about hard work, continuous learning, and celebrating creativity in all forms. And like you, we LOVE bringing ideas to life.
We're Potters Ourselves! Starting with clay taught us that great work happens at high temperatures, so whether you're working with ceramics, glass art, metalworking, or industrial applications like DPF cleaning, we're here for you.
P.S. The cute pup's name is Kodah, he's the CPO (Chief-Pottery-Officer). He's the one who threw the bowl in the photo, if you can believe it. ✨
Evenheat KH 418 Specifications
| Feature |
Specification |
| Model |
KH 418 Knife Heat Treat Oven |
| Function |
Knife Tempering • Heat Treating • Harden Small Runs |
| Interior Dimensions (D × W × H) |
18" × 6.5" × 4.25" |
| Chamber Volume |
0.29 cu. ft / 8.2 L |
| Maximum Temperature |
2200 °F (1205 °C) |
| Voltage |
120V |
| Amperage |
13A |
| Wattage |
1560W |
| Receptacle Required |
NEMA 5-15 |
| Breaker Required |
15A |
| Weight |
~75 lb (freight) |
| Outside Dimensions (D × W × H) |
23.5" × 16.5" × 17.25" |
| Controller Options |
TAP II, Icon, Icon+, Rampmaster 3 |
| Shipping |
Freight truck |
Evenheat KH 418 Manual
Evenheat KH 418 Manual
