STS Auto Design Tools Store

Welcome to STS Auto Design Tools
Your source for magnetic tool attachments and custom solutions built for pros and DIYers alike. We design durable, innovative accessories to keep your tools organized, secure, and always within reach — whether you're in the shop, on the job, or working at home.

🧲 Magnetic tool holders
🔩 Custom 3D-printed solutions
🛠️ Built for mechanics, techs, and makers


Join thousands who trust STS to work smarter. Explore our best-sellers or become a Pro Partner and get exclusive monthly deals.

  • FREE SHIPPING

    All items are free shipping in the USA.
    International Shipping available for an additional fee.

  • EXPERTLY CRAFTED

    Precision parts designed by automotive professionals with a passion for performance and style.

  • PREMIUM QUALITY

    We use top-tier materials to ensure unmatched durability, fitment, and aesthetic appeal.

  • DEDICATED SUPPORT

    Our team is available Monday–Friday, 9am–5pm EST to answer questions and guide your build.

GALLERY

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New Collection

STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools
STS Auto Design SN144 – Magnetic Battery Cover for Snap-On 14.4V Tools
STS Auto Design STSPB Series – Magnetic Pry Bar Holders for Secure Tool Storage STS Auto Design STSPB Series – Magnetic Pry Bar Holders for Secure Tool Storage STS Auto Design STSPB Series – Magnetic Pry Bar Holders for Secure Tool Storage STS Auto Design STSPB Series – Magnetic Pry Bar Holders for Secure Tool Storage
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STS Auto Design STSPB Series – Magnetic Pry Bar Holders for Secure Tool Storage
STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover
Quick View
STS Auto Design M18 xc3/4/5/6.0ah MW18XC Battery Magnetic Cover

STS Auto Design Tools
The original permanent magnetic tools attachments.

Engineered to dominate. Designed to inspire.

From concept to the cart, STS Auto Design Tools delivers magnetic innovation and rugged utility that work as hard as you do.
Our products don’t just attach—they elevate. Designed for pros who demand efficiency and built for performance that sticks with you.