Cold Steel 4-MAX Premium Folding Knife

Maximum Strength. Zero Compromise.

The Cold Steel 4-MAX represents the pinnacle of production folding knife engineering. Created through a collaboration between Cold Steel and award-winning custom knife maker Andrew Demko, it was designed with one uncompromising objective: to produce the strongest, most capable folding knife possible while remaining within a 4-inch blade format. Built using premium materials normally reserved for high-end custom knives, the 4-MAX is a true flagship model for serious collectors and enthusiasts.

Its formidable 4-inch extra-wide drop point blade is precision crafted from American CPM S35VN stainless steel, delivering exceptional edge retention, outstanding toughness and excellent corrosion resistance. Finished with a rugged stonewashed surface, the blade combines a durable working finish with a broad cutting profile that excels during demanding outdoor, workshop and heavy-duty utility tasks. The razor-sharp plain edge offers superb slicing performance while maintaining the strength expected from a knife of this calibre.

The 3D CNC-machined G-10 handle scales are carefully contoured for comfort and confidence, even during prolonged use. Beneath them sit tumbled titanium liners and titanium back spacers, creating an exceptionally rigid frame that bridges the gap between production knives and bespoke custom designs. Every component has been manufactured to Andrew Demko's exacting specifications, resulting in outstanding fit, finish and long-term durability.

At the heart of the 4-MAX lies Cold Steel's revolutionary Tri-Ad® Lock, widely regarded as one of the strongest locking mechanisms ever developed for a folding knife. Subjected to extensive shock, impact and strength testing, the 4-MAX has demonstrated extraordinary structural integrity, reportedly supporting over 800 lbs (approximately 363 kg) of suspended weight during testing without sustaining damage. This exceptional lock strength provides complete confidence whenever demanding cutting tasks are undertaken.

Combining premium American steel, titanium construction and Andrew Demko's world-renowned engineering, the Cold Steel 4-MAX Premium Folding Knife stands among the finest production folders ever manufactured—a remarkable fusion of custom-knife quality, uncompromising strength and outstanding craftsmanship.

Specs

• Brand: Cold Steel
• Product Type: Folding Knife
• Blade Length: 4" (102 mm)
• Overall Length: 10" (254 mm)
• Handle Length: 6" (152 mm)
• Blade Material: American CPM S35VN Stainless Steel
• Advanced Blade Material: CPM S35VN
• Blade Finish: Stonewashed
• Blade Style: Extra-Wide Drop Point
• Blade Edge: Plain
• Handle Material: 3D CNC-Machined G-10
• Handle Construction: Tumbled Titanium Liners with Titanium Back Spacers
• Lock Type: Tri-Ad® Lock
• Knife Type: Folding Knife
• UK Legal Carry: No
• Weight: 295 g

Blade Edge: Sharpened.

Age-restricted item — 18+ only. This is a bladed article. Under the Criminal Justice Act 1988 (s141A) and the Offensive Weapons Act 2019 it is an offence to sell or deliver it to anyone under 18. We will not do so.

How We verify:

Age and identity are verified at checkout via our age-verification provider (OneID). Orders that fail verification are cancelled and refunded.

The parcel is dispatched on an age-restricted courier service and is age-checked on delivery. ID is required at handover, the item is delivered only to the buyer, and it is not left unattended, with a neighbour, or in a locker/safe place.

This blade is sold as a collector's/display item. Carrying a bladed article in a public place without good reason is a criminal offence. Buy responsibly.