WORX WX845 - Smart Clamp & 70mm Cut
BIKMAN TECHImagine making precise, clean crosscuts on floorboards or trim without dragging extension cords across the job site. That’s the promise of the WORX WX845 cordless sliding mitre saw. In this comprehensive guide from BIKMAN TECH, we’ll explore every aspect of this innovative tool—from its clever XtraHand™ clamp to real-world cutting performance. By the end, you’ll know exactly whether the WORX WX845 belongs in your workshop or truck.
1. Design and Build Quality
The WORX WX845 feels solid yet surprisingly portable. Built around a thick aluminium chassis with rubberised end bumpers, it’s designed to survive transport between job sites. At just 11.5 kg (25.4 lbs) without a battery, it’s one of the lightest sliding mitre saws in its class. The compact footprint means you can stash it on a shelf or in a van with minimal hassle.
The standout design element is the bright red XtraHand™ workpiece clamp. This lever-operated mechanism secures the material on both sides of the blade simultaneously—a game-changer for flooring and trim work. The transparent lower guard keeps the blade visible at all times, and the fold‑out extension wings support longer boards without wobbling.
2. Key Features Worth Knowing
Beyond the XtraHand clamp, the WORX WX845 packs several thoughtful features:
- Laser guide system – Projects a red line exactly where the blade will cut for quick alignment.
- Soft‑start motor – Reduces torque jerk on startup, making cuts smoother and safer.
- Adjustable cutting depth – Allows dado cuts and grooving.
- Positive mitre stops – Nine detents at common angles (0°, 15°, 22.5°, 31.6°, 45° left/right).
- Single‑bevel capability – Tilts 0‑45° left and right (single direction).
The sliding steel rails extend the cutting capacity dramatically, while the lock knob secures the saw for transport. It’s a well‑rounded package for a cordless mitre saw.
3. Technical Specifications
Here are the official specs for the WORX WX845 at a glance:
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| Specification | Detail |
|---|---|
| Voltage | 20V Max (PowerShare platform) |
| Blade diameter | 216 mm (8‑1/2") |
| No‑load speed | 0‑3,200 RPM |
| Cutting capacity (0° mitre / 0° bevel) | 220 mm width × 70 mm height |
| Cutting capacity (0° / 45° bevel) | 220 mm × 41 mm |
| Cutting capacity (45° mitre / 0° bevel) | 155 mm × 70 mm |
| Weight (tool only) | 11.5 kg (25.4 lbs) |
| Dimensions (W×D×H) | 914 × 759 × 317 mm (36"×30"×12.5") |
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4. Real‑World Performance
We tested the WORX WX845 across different materials, and the results confirm its specialized nature. On floorboards, laminate panels, skirting boards, and trim, the saw shines. The XtraHand clamp holds the workpiece steady, and the 40‑tooth TCT blade delivers clean, splinter‑free edges. The laser guide is accurate out of the box, and the soft‑start makes every cut feel controlled.
However, when we moved to thick hardwoods (e.g., 70 mm oak or dense construction lumber), the brushed motor showed its limits. Progress slows, and the saw is better suited for occasional thick cuts rather than repetitive heavy work. One German tester noted, “it can’t handle 10 cm thick beams” — so keep expectations realistic. For its intended audience (DIYers and flooring pros), the performance is more than adequate.
5. Ease of Use and Ergonomics
The XtraHand clamp alone makes this saw a joy to use. No more fumbling with C‑clamps or vice grips — just one lever and the board is locked on both sides of the blade. Changing mitre angles is tool‑free, with positive stops that click into place. The mitre scale is easy to read, and the bevel adjustment works smoothly.
Blade changes are straightforward using the included wrench. The only ergonomic miss? The folded saw lacks a dedicated carry handle, so you’ll need to grip the base or the blade guard housing. Still, the lightweight design (under 12 kg) makes it manageable.
6. Battery Life and Compatibility
The WORX WX845 runs on the PowerShare 20V battery system. With a standard 4.0Ah battery, you can expect dozens of cuts in laminate or softwood before recharging. Users report “many cuts from a battery” and that it “cuts all types of lumber with ease” on a single charge. For all‑day work, you can upgrade to larger 5.0Ah, 6.0Ah, or 8.0Ah batteries.
One of the biggest advantages of the PowerShare platform is cross‑tool compatibility. The same battery powers over 100 Worx tools — from drills and leaf blowers to chainsaws and tyre inflators. If you already own Worx gear, the WX845 slides right into your ecosystem.
7. What Owners Are Saying
User feedback is overwhelmingly positive. On the official Worx US site, the saw holds a 4.9/5 star rating from 64 reviews, with 98% of users recommending it. German and Russian review platforms echo this sentiment, praising the build quality, portability, and the XtraHand clamp.
Common praises include: “excellent for flooring work,” “laser is accurate,” and “soft‑start makes a big difference.” Criticisms focus on the dust collection bag (only moderately effective) and the lack of a length stop for repetitive cuts. A few users noted the brushed motor feels less powerful than brushless rivals, but most agree that for trim and panel work, it’s plenty strong.
8. Pros and Cons
Pros:
- Extremely portable (11.5 kg) and cordless
- Innovative XtraHand clamp secures material on both sides
- 220 mm width × 70 mm height cutting capacity
- Accurate laser guide and soft‑start motor
- Part of the huge PowerShare battery ecosystem
- High user satisfaction (4.9/5 stars, 98% recommend)
- Struggles with thick hardwoods and large dimensional lumber
- Dust collection bag is only moderately effective
- No adjustable length stop for repetitive cuts
- Single‑bevel only (not dual‑bevel)
- Laser lens needs periodic cleaning
9. Is the WORX WX845 Right for You?
The WORX WX845 cordless sliding mitre saw is not a one‑size‑fits‑all tool. It’s a specialist that absolutely nails its niche: flooring installation, laminate cutting, trim work, and DIY woodworking. If you’re a framer cutting 4x4 posts daily, look for a larger corded or high‑torque brushless saw. But if you value portability, cordless convenience, and a genuinely clever workpiece clamp, the WX845 is a brilliant choice.
Ready to upgrade your workshop? Head over to BIKMAN TECH to explore the latest deals and see how the WORX WX845 can transform your next project. Got questions or your own experience to share? Drop a comment below — we’d love to hear from you. And don’t forget to share this post with fellow makers who need a lightweight, powerful mitre saw!
Images of WORX WX845
