Test Keys & Key Blanks for Automotive Professionals

Need to quickly identify or decode a lock? KeylessCity carries top-quality test keys and blanks for locksmiths who demand accuracy and reliability. Whether you're working on domestic cars, European imports, or commercial vehicles, we’ve got the right blanks to help you diagnose, decode, and duplicate with confidence

Every locksmith’s foundation starts with good mechanical keys, and few things are more reliable than a solid metal blank cut and ready for duplication. At Keyless City, our Mechanical Keys collection delivers high-quality mechanical key blanks, double-sided keys, test keys, and handy clearance deals for brands like Ford, GM, Toyota, Mazda, Hyundai, Iveco, International, Honda, and more. Whether you're stocking your shop or building out mobile kits, these mechanical keys ensure smooth cutting with consistent fit, function, and value. Steel blanks that cut clean and cut sharp? That’s what keeps your machine humming and your customers happy.

Find the Right Fit

• Single Test Keys – Replace worn-out blades or fill gaps in your kit
• Multi-Pack Bundles – Save on the most frequently used blanks
• High-Security Blades – For advanced automotive and commercial locks
  
  

Collection Overview 

This collection brings together precision mechanical key blanks built to OEM specs or better. Highlights include:

• Double-sided mechanical keys—GM B63, Ford 321207 H51, Keyline‑Mazda MZ24/MZ31—for classic American and Japanese vehicles
• Single-sided test keys—Ford H94-PT, HU100, X232 Hyundai/Kia—for verifying cut accuracy before final duplication
• Truck and heavy-duty blanks—Iveco X155-IV1, Mack 322710, International 321490—for fleet and heavy equipment locksmiths
• Plastic and metal mechanical heads—Honda X214 HD103, Hyundai/Kia HY12, Strattec OEM blanks for varied access needs
  
  

With competitive pricing from $0.52–$1.00 each, these mechanical keys are a staple in any locksmith inventory.

Double‑Sided Mechanical Key Blanks

Double‑sided keys provide symmetrical engagement and tighter tolerances—ideal for older vehicles with Swiss‑style tumblers. Keyless City stocks:

• GM B63 / P1098CV double‑sided key blanks (JMA GM‑17), used in late‑’80s/early‑’90s GM vehicles like the Impala, Monte Carlo, and Eldorado
• Ford/Lincoln Mercury H51 blanks (Strattec 321207) fit decades of American classics, ensuring smooth cuts
• Mazda MZ24/MZ31 blanks support Asian makes with clean duplication Edge
• These mechanical key blanks deliver precise insertion and reliable ignition turn—no wobble, no missed cuts
  
  

Stocking double‑sided mechanical keys helps you cover a broader client base—classics, trucks, imports—with confidence.

Single‑Sided & Test Key Blanks 

Single‑sided test keys are locksmith staples—they let you verify blade profile and slot position before cutting the final key. We carry:

• Ford H94‑PT side‑mill transponder test keys with chip-ready blanks (4D63/80‑bit) for quick cabinet test cuts
• HU100 GM test key blades for CAN GM systems and chuck tests
• Hyundai/Kia X232 HY12 test blade for modern Asian vehicles
• Mack (322710) and International (321490) truck test blanks enable high-accuracy cuts before final duplication
  
  

With minimal investment, test blades preserve your custom blanks and keep jobs running clean—especially on flip or transponder keys.

Truck & Heavy‑Duty Key Blanks 

Major fleet and heavy‑equipment locksmith jobs demand the right blanks. This collection includes:

• Iveco X155‑IV1 blanks for European truck keying
• Mack 322710 and International 321490 hybrid blanks for heavy-duty vehicle fleets
  
  

These mechanical key blanks are strong, reliable, and cut precision-made—essential for heavy market segments where key downtime hits hard.

Plastic‑Head & Specialty Mechanical Keys 

Plastic-head mechanical keys combine convenience with compatibility. Keyless City includes:

• Honda X214 HD103 plastic-head test blanks—great for Honda/Acura bulk jobs
• Hyundai/Kia HY12 blanks with reinforced heads for coding
• Strattec OEM metal-head blanks for reliable key distribution
  
  

Plastic-head mechanical keys offer better handling, optional chip placement, and durable interface for key machines.

Clearance Test & Mechanical Keys 

Check out clearance deals under mechanical keys:

• Mazda MZ24 blanks 
• Iveco X155‑IV1 
• Ford H51 blanks and more.
  
  

They cut like regular blanks—same tolerances, same quality, but at clearance prices. Stock up now.

Featured Mechanical Key Products

• JMA GM B63 / P1098CV double-sided blank – fits ’87–’90 GM vehicles
• Keyline Mazda MZ24 metal key blank  
• Ford H51 / 321207 Strattec blank 
• Iveco X155‑IV1 truck blank 
• Honda X214 HD103 plastic-head blank 
  
  

Economical, reliable, fast-shipping mechanical key blanks that complement any key machine setup.

Why This Collection Stands Out 

What sets this Mechanical Keys collection apart is its sheer variety and precision. With double-sided blanks, test blades, plastic-head options, and heavy-duty truck keys, Keyless City offers a one-stop resource for every mechanical key need. Each blank is engineered for cutting smooth, fitting tight, and lasts in wear. Clearances rotate fast—don’t hesitate. Using test keys saves your premium blanks, reducing waste. And bulk-packed mechanical key blanks ensure your shop or van stays stocked, cutting time improved, and margins intact. Quality that works with any duplicator or key machine—without surprises.

• Wide Compatibility – Covers Ford, Toyota, BMW, Mercedes, and more
• Trusted Brands – AYDI, ILCO, Keyline USA, and other industry-leading manufacturers
• Precision-Cut Blades – Consistent quality for accurate decoding
• Bulk Savings – Stock up with discounted bundles for high-use shops
  
  

Related Collections You’ll Want

Enhance your mechanical key workflow with:

• Transponder Keys & Chips – embed immobilizer chips post-cut
• Plastic Head Keys – combine mechanical cuts with chip retrofits
• Remote Keys & Remote Flip Keys – round out full key replacement
• Key Machine Accessories – jaws and cutters keep cuts clean
• Emergency Keys & Blades – have test blades handy for roadside work
  
  

Together, these collections cover everything from mechanical blank to full smart key programming.

Why Locksmiths Trust Keyless City 

Here’s why pros turn to Keyless City for mechanical keys:

• Free shipping on $150+ – bulk blanks ship free
• Discounted expedited shipping – last-minute jobs won’t wait
• Lowest prices and clearance deals – mechanical keys from $0.52
• OEM-standard blanks – cut precise every time
• Price‑matching – we’ll meet better quotes
• Same‑day shipping before 3 PM CST – avoid delays
• 30‑day easy returns – if a blank doesn’t fit
• Live tech support – call or live chat with us
  
  

Count on us for mechanical key blanks that work without fail—cut after cut.

Whether you’re cutting basic mechanical keys, checking cuts with test blades, or meeting fleet needs with truck blanks, Keyless City’s Mechanical Keys collection delivers dependable quality and unbeatable variety. Keep these blanks ready—GM B63, Ford H51, Mazda MZ24, Honda, Iveco, International—each ready for your machine and your cut charts. Backed by fast shipping, smart pricing, and locksmith-tested reliability, it’s the mechanical key solution you rely on every day. Stock ‘em, cut ‘em, count on ‘em—this collection is your foundation for smooth, professional key work.