Skip to content
Demand Products Groove Jet 400 Hot Knife Foam Grooving Kit with 10 ft. NWFW Wire and Hard Case – KITGJ4K
Regular price $1,176.29Demand Products Groove Jet 400 Hot Knife Foam Grooving Kit with 10 ft. NWFW Wire and Hard Case
The Demand Products Groove Jet 400 kit is a hot knife foam grooving tool for cutting clean grooves in foam insulation all the way to inside corners. The kit includes the GJ400 Groove Jet hot knife groover, 10 ft. of NWFW flat hot wire, and a hard carrying case. The hot knife weighs only 4 lb and handles blades up to 5 in. x 3 in. NWFW.
Key Features:
- Front-mounted blade: The hot knife blade sits up front, cutting foam all the way to inside corners.
- Lightweight tool: The hot knife weighs only 4 lb for comfortable extended use.
- Fast heat-up: Hot knife blades heat up quickly and cut foam clean with one pass.
- Flat wire included: Includes 10 ft. of NWFW flat hot wire for grooving blades.
- Hard case: Ships with a hard plastic carrying case for storage and transport.
- Variable heat control: Variable heat control lets you adjust hot knife temperature; transformer is included inside the tool.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Demand Products |
| Manufacturer model | KITGJ4K |
| Sell unit | 1 kit (GJ400 hot knife, 10 ft. NWFW wire, hard case) |
| Material | Hot knife tool with NWFW flat nichrome wire |
| Nominal size | Handles up to 5 in. x 3 in. NWFW blades |
| Wire included | 10 ft. NWFW flat hot wire |
| Tool weight | 4 lb (hot knife) |
| Heat control | Variable heat control |
| Power | Transformer included inside tool; 220-volt version also available |
| Case | Hard plastic carrying case included |
| Intended use | Grooving and cutting foam for EIFS and foam insulation work |
| Pack quantity | 1 kit |
Coverage & How Much You Need:
The included 10 ft. of NWFW flat wire provides the grooving element for the hot knife; wire is consumed with use and can be replaced by the foot. No square-footage coverage rating applies to this tool kit.
Fit and Compatibility:
Part of the Demand Products Groove Jet 400 / hot knife foam-cutting system. Replacement NWFW flat and round nichrome wire, blades, and an optional wire bending and crimping tool for shaping blades are sold separately. A 220-volt version is available if 110-volt power is not suitable.
Frequently Asked Questions (FAQ):
Q: What is included in the kit?
A: The kit includes the GJ400 Groove Jet hot knife groover, 10 ft. of NWFW flat hot wire, and a hard plastic carrying case.
Q: How much does the hot knife weigh?
A: The hot knife weighs only 4 lb.
Q: What size blades does it handle?
A: It handles up to 5 in. x 3 in. NWFW hot knife foam cutting blades.
Q: Does it have adjustable heat?
A: Yes, it has variable heat control, and the transformer is included inside the tool for easy use.
Q: Is replacement wire available?
A: Yes, NWFW flat nichrome wire is sold by the foot, and round nichrome wire in several diameters is also available.
Q: Is there a 220-volt option?
A: Yes, the Groove Jet 400 is also available in 220 volts.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The Groove Jet 400 is a go-to for EIFS and foam shape work because the blade sits ahead of the body, letting you groove tight into inside corners. Shape your NWFW blades with a wire crimping tool before heating, and run variable heat low enough to avoid scorching the foam. Keep spare flat wire on hand; wire wears and breaks with use.
Hot knife blades and wire reach high temperatures and can cause burns or fire; use in a ventilated area, keep the tool away from flammables, and let blades cool before handling.
Get the Demand Products Groove Jet 400 kit for fast, clean foam grooving with everything in one case.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
