Features
- Expands 3/8" to 1-1/2" expansion-type PEX and PE-RT (ASTM F1960)
- Automatic rotating head for more even expansion surfaces
- Brushless motor for increased runtime
- Includes 1", 1-1/4" and 1-1/2" expansion heads; compatible with existing 3/8"–1" heads (sold separately)
- Ergonomic body with upper and lower grip positions for overhead and body-height use
- Onboard LED light and side-mounted hang hook
- Tool Connect chip pocket for optional Bluetooth tracking (chip sold separately)
- Kit includes expander cone grease
Specifications
| Battery Voltage (Maximum Initial) | 20 V MAX* (nominal 18 V) |
| Battery Included | Yes |
| Battery Amp Hours | 5 Ah (DCB205 included) |
| Charger Included | Yes |
| Motor Type | Brushless |
| Expandable Pipe Range | 3/8" – 1-1/2" (PEX-A, ASTM F1960; PE-RT) |
| Included Expander Heads | 1", 1-1/4", 1-1/2" (DCE410100, DCE410114, DCE410112) |
| Additional Included Items | DCE400GR expander cone grease |
| Compatible Expansion Heads | DEWALT 3/8"–1" heads (sold separately) |
| Runtime Claim | Up to 81 expansions on 1-1/2" PEX-A per charge (using DCB205 5Ah battery) — DEWALT figure |
| Power Tool Features | Built-in LED light |
| Number Of Batteries Included | 1 |
| Product Weight (Kit) | 19.32 lb |
| Dimensions (H X W X D) | 16.25 in x 6.75 in x 16.563 in |
| Warranty | 3 Year Limited Warranty; 1 Year Free Service; 90 Days Satisfaction Guaranteed |
| Sku / Model Compatibility Note | Tool is CHIP-READY for Tool Connect™ Chip DCE042 (sold separately) |
Cordless PEX expander designed to expand expansion-type PEX and PE-RT piping from 3/8" up to 1-1/2". The kit uses a brushless motor for extended runtime, an automatic rotating head to produce even expansions, and includes multiple expander heads for common PEX sizes. The tool has onboard LED illumination, dual grip positions for overhead or body‑height work, and a side-mounted hang hook. Bluetooth tracking can be added via a separate Tool Connect chip.
Project Ideas
Business
One‑Day Radiant Retrofits
Offer flat-rate micro-installs of radiant floor/ceiling panels in bathrooms, mudrooms, and entries. Use the expander to rapidly assemble 1" supply/return headers with multiple 3/8"–1/2" circuits and F1960 fittings. The brushless motor and even-expansion head minimize rework, helping you complete turnarounds in a single visit.
Custom PEX Manifold Fabrication
Sell made-to-order ASTM F1960 manifolds: labeled ports, pressure-tested, and shipped ready to install. Build from 1"–1-1/4" trunks with 3/8"–3/4" takeoffs, using the expander for clean, consistent joints. Offer options for radiant zones, irrigation, snow melt, and domestic water. Add Bluetooth Tool Connect chips to track shop tools and maintain quality control.
Emergency Repipes & Burst Repair
Run a mobile service replacing burst copper/CPVC with PEX-A. The cordless expander handles overhead and crawlspace work, with the LED illuminating dark joist bays. Stock 1/2"–1" fittings and rings for rapid, reliable F1960 connections, and market a 24/7 response window for landlords and property managers.
Outdoor Shower & Seasonal Plumbing Kits
Package design-build installs for Airbnb hosts and homeowners: outdoor showers, hose bib manifolds, and drain-back systems. Use 1" PE-RT mains with expanded branches to 1/2" fixtures for quick assembly and easy winterization. Offer annual open/close service contracts for recurring revenue.
Hydronic Snow‑Melt Steps & Mats
Fabricate modular snow-melt panels for stoops and stair treads using 1/2" PEX-A serpentine loops and F1960 fittings, feeding from a 1" manifold. The expander’s automatic rotation produces uniform expansions across many joints, improving reliability under freeze/thaw. Sell as installed systems or prebuilt kits with instructions.
Creative
Radiant Planter Boxes
Build cedar planter boxes with embedded PEX-A heating loops to extend the growing season. Use the expander to make clean ASTM F1960 connections for a leak-free loop and a compact manifold (3/4"–1" headers feeding 3/8"–1/2" circuits). The automatic rotating head gives even expansions for reliable seals, and the LED helps when assembling under a bench or deck. Connect to a small hydronic heater or solar thermal loop.
Backyard Rinse/Outdoor Shower
Create a fold-away outdoor shower with a PEX-A supply and drain-back design for freeze protection. Expand 1" PE-RT main feeds and reduce to 1/2" risers for the mixing valve and shower head using F1960 fittings. The cordless expander makes quick, even expansions in tight spots behind privacy walls, and the dual grip helps with overhead connections at the shower arm.
Heated Boot & Glove Drying Rack
Form a wall-mounted hydronic drying rack using 1/2" PEX-A loops paired with a small circulator and mixing valve. Expand and assemble tees and 90s to build warm-water rails that gently dry gear without scorching. The even expansion reduces leak risk at multiple joints, and the hang hook keeps the tool handy while routing long loops.
LED-Lit PEX Chandelier
Use translucent PEX-A arcs as diffusers for an art chandelier. Build a central 1" manifold with expanded F1960 branches feeding 1/2" PEX rings. Slide LED strips inside or behind the loops for a soft glow. The automatic rotating head ensures round, even expansions for crisp-looking joints at visible fittings.
Raised Bed Irrigation Manifold
Assemble a durable, above-grade irrigation header from 1" PEX-A/PE-RT with expanded outlets to 1/2" valves feeding drip lines. Expansion fittings hold up outdoors and simplify seasonal blowout. The onboard LED is useful when mounting manifolds under deck skirts or in shed corners.