Wen JN8504 8.5-Amp Plate and Biscuit Joiner

The Verdict

The Wen JN8504 proves you don’t need to drop $300+ on a biscuit joiner to get clean, accurate joints. This 8.5-amp machine has earned a 4.2-star rating from 210 shoppers, and after digging into what owners actually say, it’s clear this budget-friendly tool punches above its price class—with a few compromises you should know about before checkout.

What’s in the box: The JN8504 ships with the joiner itself, a rip fence with angle markings, a dust bag, an arbor wrench, and a detailed manual. There’s no storage case, so plan to keep the wrench somewhere safe. The tool weighs about 8.5 pounds—not the lightest in its class, but the weight actually helps stability during plunge cuts.

Real-world performance: The 10,000 RPM motor handles the two most common biscuit sizes (#10 and #20) with authority. One reviewer noted, “I jointed 20+ oak boards for a dining table and it never stalled once.” The plunge action is smooth, and the clear base plate gives you a solid view of your layout marks—something pricier models sometimes skimp on. The dust collection port fits a standard shop vac hose, which is essentially mandatory if you’re working indoors.

What buyers consistently praise: Tool-free fence adjustments top the list. The fence tilts 0-90 degrees with detents at common angles, letting you cut angled biscuit joints for miters and bevels without digging out a manual. The 2.5-inch cutting depth covers everything from small #0 biscuits to larger #20 plates. Multiple reviewers mention the motor’s consistency—it doesn’t bog down on dense hardwoods, a common failure point for budget routers and joiners.

Where it falls short: The fence height adjustment relies on detents rather than a fine-thread knob. That’s fine for standard 3/4-inch stock, but if you’re working with odd thicknesses, you’ll fight to get precise depth settings. The included dust bag is essentially decorative—plan on a shop vac. And the arbor wrench has no onboard storage, which has already cost a few owners their wrench between projects.

Who should buy this:

• DIY furniture builders making tabletops, shelves, and cabinets where #20 biscuits are the standard
• First-time biscuit joiner owners who want to learn the technique without a $400 investment
• Small shop woodworkers who need a second joiner or a portable option for job sites

Skip it if: You need fine depth adjustment for exotic hardwood thicknesses, or you’re a production shop that will run it daily for hours. The detent-based fence will frustrate you, and you’ll want a Festool or Lamello for that level of precision.

FAQ:

Q: Does it come with biscuits? A: No. You’ll need to buy biscuits separately—#0, #10, and #20 sizes are all compatible. A 500-pack of #20 biscuits runs about $15-20.

Q: Can it cut slots for shelf pins or dowels? A: Not for dowels, but the adjustable fence lets you cut multiple parallel slots for adjustable shelving. Just set the depth and reposition between cuts.

Q: Is the dust collection actually effective with a shop vac? A: Yes, far better than the included bag. The port is 1-1/4 inches, so you’ll need an adapter for a 2.5-inch vac hose.

The Verdict: Buy it if you want a reliable, accurate biscuit joiner for weekend projects and don’t need micrometer-level fence adjustments. Skip it if you’re a professional who’ll use it daily in demanding applications—but for 90% of woodworkers, this is the only joiner you’ll need.

Rating: 4.2/5 — A genuinely capable tool that costs a fraction of pro models. The fence detents and missing wrench storage are minor annoyances, not dealbreakers.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.