Built by a Sharpener, for Sharpeners

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3D-printed sharpening upgrades, accessories, and tools built for real-world work.

★★★★★ 250+ five-star reviews from sharpeners across the U.S & Internationally.

Work Sharp Upgrades

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  • MK.1

    MK.1

    Latest and legacy MK.1 upgrades. Affordable, stable, and battle-tested.

    MK.1

  • MK.2

    MK.2

    Advanced MK.2 upgrades for smoother, straighter, more controlled sharpening.

    MK.2

  • Precision Adjust

    Precision Adjust

    Simple drop-ins for a cleaner, smoother PA sharpening experience.

    Precision Adjust

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✔ Built by a full-time working sharpener.

✔ Designed, tested & shipped in-house.

✔ Real-world shop gear, not mass-market parts.

Work Sharp Ken Onion MK2 Riser V2.0

Choose the MK.2 riser style that fits how you sharpen.

MK.2 V2.0 Sliding — Smooth & VersatileMK.2 V1.0 Stationary — Solid & Predictable

Accessories & Essentials

Small upgrades that make a big difference.

📦 Each order made & shipped in-house.

Please allow 2-3 business days to ship.