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Safety Technology Automatic Heavy Duty Knife with Solid Handle — 3.5-Inch Stainless Steel Blade, 8-Inch Overall, Safety Lock, One-Hand Deployment, 4.5-Inch Collapsed, Smooth Grip EDC Knife

SKU: ST-AK-102
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Original price was: $18.95.Current price is: $16.11.

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Same reliable automatic knife, solid handle. This version gives you a smooth, unbroken grip surface that some people prefer for general use. The 3.5-inch stainless steel blade opens with one hand, locks into place, and folds to 4.5 inches. The safety lock keeps it closed in your pocket. Simple, affordable, and built to work.

  • 3.5-inch stainless steel blade with automatic one-hand deployment
  • Solid stainless steel handle for a smooth, secure grip
  • Safety lock prevents accidental blade deployment during carry
  • 8-inch overall length, collapses to 4.5 inches for compact pocket carry
  • Heavy-duty 0.4 lb construction built for daily use and hard tasks

Solid Grip, Solid Performance

Some people prefer a smooth handle on their knife — fewer places for lint and debris to collect, a clean feel in the hand, and a streamlined profile in the pocket. This automatic knife is the same reliable platform as the 5-hole version but with a solid stainless steel handle for those who want a smooth, uninterrupted grip surface. Same blade, same lock, same dependable one-hand deployment.

Who This Knife Is For

This knife is for the same person who values a good everyday carry blade but prefers the feel of a solid handle. Whether you’re in a trade, working outdoors, or simply like having a reliable blade close by, this is an affordable option that doesn’t cut corners on the parts that matter. The solid handle also tends to shed pocket lint more easily and cleans up faster after dirty jobs.

If you’re choosing between this and the 5-hole version, it comes down to grip preference. Both knives perform identically — this one just feels different in the hand.

Is This the Right Choice for You?

Choose this Automatic Knife if you want:

  • A smooth, solid handle with a streamlined pocket profile
  • One-hand automatic deployment with a safety lock
  • An affordable everyday carry blade for daily tasks

Consider something else if you need:

  • More grip texture — the 5-hole handle version provides better tactile grip
  • A larger blade — the OTF models offer longer blades for heavier tasks

Same Reliable Mechanics

Under the handle, this knife runs the same spring-assisted automatic mechanism as the rest of the lineup. Press the deployment button and the 3.5-inch stainless steel blade swings open and locks into position. The separate safety lock prevents the blade from opening accidentally — an important detail when you’re carrying it alongside everything else in your pocket.

The solid stainless steel handle is durable and corrosion-resistant. It provides a smooth grip surface that works well with or without gloves. At 8 inches open and 4.5 inches closed, the dimensions are pocket-practical without sacrificing useful blade length. The 0.4 lb weight means you’ll carry it comfortably all day without your pocket sagging.

Quick Comparison: How Does This Knife Stack Up?

Feature Auto Knife (Solid) Auto Knife (5-Hole) OTF Single Edge Stun Gun
Blade Length 3.5 inches ✔ 3.5 inches ✔ 3.5 inches ✔ N/A
Handle Style Solid smooth ✔ 5-hole textured Solid smooth N/A
Weight 0.4 lbs ✔ 0.4 lbs ✔ 0.7 lbs Varies
Collapsed Size 4.5 inches ✔ 4.5 inches ✔ 5.5 inches Varies
Price Range Budget-friendly ✔ Budget-friendly ✔ Mid-range Varies
Best For EDC — smooth grip EDC — textured grip Heavy-duty use Non-lethal defense

Practical Details

Overall length is 8 inches open, 4.5 inches collapsed. Blade measures 3.5 inches, stainless steel. Handle is solid stainless steel. Total weight is 0.4 lbs. Dimensions are 8 x 1.38 inches. Safety lock prevents accidental deployment. Black color. Manufactured by Safety Technology.

A straightforward automatic knife with a clean design and dependable performance. Carry it daily and it’ll be ready every time you reach for it.

What’s the advantage of a solid handle over the 5-hole design?

The solid handle provides a smooth, uninterrupted grip surface that some users prefer. It collects less pocket debris, cleans up faster after messy jobs, and has a streamlined profile that slides in and out of pockets more easily. Both handle styles offer the same performance — it’s purely a grip preference choice.

Is the blade easy to sharpen?

Yes. The stainless steel blade can be sharpened with any standard knife sharpener — a whetstone, pull-through sharpener, or sharpening rod all work well. Stainless steel holds an edge longer than carbon steel and resists corrosion, but when it does need sharpening, a few passes will bring it back to a working edge.

Can I carry this knife clipped to my belt?

This knife is designed for pocket carry when collapsed to 4.5 inches. It doesn’t include a belt clip, but it fits easily into a pants pocket, jacket pocket, or a small belt pouch. The compact collapsed size and lightweight 0.4 lb build make it comfortable for all-day carry.

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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