Safety Technology Automatic Heavy Duty Knife 8 Inch – 3.5″ Blade, 5-Hole Stainless Steel Handle, Safety Lock, Black, ST-AK-101

SKU: ST-AK-101

$18.95

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A straightforward automatic knife built for everyday use — 8 inches overall, 3.5-inch blade, stainless steel handle with five-hole cutouts, and a safety lock that keeps it where you put it until you need it. Solid construction, black finish, no extra features getting in the way.

  • 8-inch overall length, 3.5-inch blade, 4.5-inch collapsed length
  • Stainless steel handle with 5-hole design — reduces weight without sacrificing grip
  • Safety lock prevents accidental deployment
  • Automatic (button-activated) open mechanism
  • Black finish throughout — clean, no-frills appearance

Built to Work, Not to Impress

Some knives are designed around how they look. This one is designed around how it works. The ST-AK-101 is a heavy-duty automatic knife with a 3.5-inch blade, a five-hole stainless steel handle, and a safety lock that keeps the blade secured when it’s in your pocket or on a shelf. At 8 inches overall and 4.5 inches folded, it’s a practical size — not a novelty, not a display piece.

The five-hole handle cutouts reduce weight without compromising the structural integrity of the grip. You get a knife that’s lighter in the hand and doesn’t feel hollow when you’re using it.

Who This Knife Is For

This is a utility-first automatic knife — the kind that suits someone who wants a reliable tool they can carry and use without overthinking. Outdoors enthusiasts, tradespeople, and collectors who prefer function over flash will find the specs straightforward and the price point fair for wholesale.

For dealers, this is a solid shelf item in the automatic knife category. It’s not a specialty piece — it’s a workhorse that appeals to a broad customer base because the price, size, and construction are all where they need to be.

Is This the Right Choice for You?

Choose this knife if you want:

  • A practical automatic knife with reliable one-hand deployment
  • A five-hole handle that reduces weight without weakening the grip
  • A safety lock for secure carry when the knife is not in use

Consider something else if you need:

  • A solid handle without cutouts (see the ST-AK-102 with solid handle)
  • A longer blade for heavy cutting tasks

Construction and Features Worth Knowing

The blade runs 3.5 inches — long enough for most practical cutting tasks, short enough to stay within legal carry limits in many jurisdictions. The automatic open mechanism is button-activated, which means one-handed deployment is fast and consistent. The safety lock is a simple but important feature: it keeps the blade from opening accidentally in a pocket, bag, or display case.

Stainless steel construction on the handle keeps the weight at 0.4 lbs — light enough to carry without noticing, solid enough that it doesn’t feel cheap. The overall dimensions are 8 inches open and 1.38 inches wide, with a 4.5-inch collapsed length that sits comfortably in most pockets.

Quick Comparison: How Does This Automatic Knife Stack Up?

Feature ST-AK-101 (5-Hole Handle) ST-AK-102 (Solid Handle) Manual Folding Knife Fixed Blade Knife
Open Mechanism Automatic ✓ Automatic ✓ Manual thumb stud/flipper Fixed (no mechanism)
Handle Style 5-hole cutout Solid ✓ Varies Varies
Weight 0.4 lbs ✓ 0.4 lbs ✓ Varies Heavier (no folding)
Safety Lock Yes ✓ Yes ✓ Liner/frame lock Sheath-dependent
Collapsed Length 4.5 inches ✓ 4.5 inches ✓ Varies N/A (not folding)
Best For Lightweight carry preference Solid grip preference Budget everyday carry Heavy-duty fixed use

Practical Details

Overall length: 8 inches open. Blade length: 3.5 inches. Collapsed length: 4.5 inches. Handle width: 1.38 inches. Weight: 0.4 lbs. Handle material: stainless steel with 5-hole design. Color: black. Includes safety lock. Check your local and state laws regarding automatic knife ownership and carry before purchasing or stocking.

If you’re looking for a no-nonsense automatic knife with solid construction and a safety lock at a fair price, the ST-AK-101 covers the basics without asking you to pay for things you don’t need.

Frequently Asked Questions

Is this knife legal to carry in my state?

Automatic knife laws vary significantly by state and locality. Some states permit carry with no restrictions, others allow ownership but prohibit carry, and a few have outright bans. It’s your responsibility to know the laws in your jurisdiction before carrying or selling automatic knives. When in doubt, check your state’s statutes or consult a legal professional.

What does the safety lock do and how does it work?

The safety lock prevents the automatic mechanism from activating accidentally. It’s a straightforward feature — engage the lock when the knife is in your pocket or stored, disengage it when you need the knife. It keeps the blade secured until you intentionally release it, which is important for both safety and legal carry in some jurisdictions.

What’s the difference between this knife and the ST-AK-102?

The primary difference is the handle design. The ST-AK-101 has a five-hole cutout handle that reduces weight slightly and gives the knife a distinct look. The ST-AK-102 has a solid handle for a more traditional feel and grip. Both have the same overall length, blade length, automatic mechanism, and safety lock. It comes down to personal preference on the handle style.

How should I maintain an automatic knife?

Keep the blade clean and dry after use to prevent corrosion. A light application of oil on the blade and pivot point will keep the mechanism operating smoothly. Avoid submerging the knife in water. Periodic cleaning of the handle cutouts with a soft brush removes debris that can work into the mechanism over time. Basic care will keep this knife working reliably for years.

Type of KnifeAutomatic
Overall Length8 inches
Blade Length3.5 inches
Collapsed Length4.5 inches
Handle MaterialStainless Steel
Weight0.4 lbs
Dimensions8" x 1.38"

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