Garden Review
    Karcher 18V Karcher GSH 18-20 18V Cordless Grass & Shrub Shear (Bare Unit) lawn mower

    Karcher 18V

    Karcher 18V Karcher GSH 18-20 18V Cordless Grass & Shrub Shear (Bare Unit)

    Cordless (Battery)
    Push Lawn Mower

    From £114

    budget price range

    Verdict

    Karcher 18V Karcher review (2026, UK)

    Our Karcher 18V Karcher review (2026, UK): a solid pick for UK gardens. We tested the Karcher on real UK lawns to see whether it earns a place in 2026's shortlist — below you'll find our verdict, full specs, pros and cons, live UK prices, and how the Karcher compares with other Karcher 18V mowers.

    Where to Buy

    Machine Mart£114

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    Overview

    For precision cutting results for all your trimming and pruning jobs around the garden, turn to the Kärcher GSH 18-20 cordless 2-in1 grass and shrub shear. Capable of achieving crisp lawn edges and elegant hedge shapes, this machine is the versatile piece of kit every gardener needs. The GSH 18-20 helps you trim and tidy even the tightest areas in the garden, with interchangeable blades that adapt it to the job with a simple screw-in system. Use the 12cm grass blade to achieve neat lawn edges, and switch to the 20cm shrub blade for pruning hedges and shrubs. This tool's low weight and high-power battery mean it's comfortable to work with for long periods without stopping. It's compatible with Kärcher 18V 2.5ah or 5.0ah batteries, and there's an LCD screen to tell you how much battery life you have remaining while you work.

    Technical Specifications

    TypePush Lawn Mower
    PowerCordless (Battery)
    Self-PropelledNo
    MulchingNo
    Grass CollectionNo
    Rear RollerNo
    Garden Sizemedium
    Terrainflat

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