Premium 440C Steel Knuckle with Copper Inlay

The 440C Stainless Steel Four Finger Knuckle with Copper Inlay represents the pinnacle of collector-grade EDC craftsmanship. Forged from premium 440C high-carbon stainless steel and adorned with intricate metallic copper sheet inlays, this substantial 15mm thick piece combines superior material science with artisan metalwork. At 480g, it delivers museum-quality aesthetics with serious tactical capability.

Key Features

• Premium 440C Stainless Steel: High-carbon martensitic steel - exceptional hardness (HRC 58-60), superior edge retention, corrosion resistant
• Metallic Copper Inlay: Hand-set copper sheet patterns on both sides - unique front and back designs create stunning visual contrast
• Heavy-Duty 15mm Thickness: Substantial profile provides maximum palm support and structural integrity
• Classic Four-Finger Design: Traditional full-hand coverage for complete knuckle protection
• Oversized Finger Holes: Accommodates larger hands comfortably - "big fingers can use it"
• Substantial 480g Weight: Serious heft for collectors and users who demand maximum impact capability
• Collector's Grade: Premium materials and artisan inlay work make this a display-worthy piece

Technical Specifications

• Material: 440C Stainless Steel (high-carbon martensitic)
• Dimensions: 111mm × 77mm × 15mm (4.37" × 3.03" × 0.59")
• Thickness: 15mm (heavy-duty)
• Weight: 480g (16.9 oz)
• Inlay: Metallic copper sheets (dual-sided patterns)
• Hardness: HRC 58-60 (440C steel)
• Configuration: Four finger, classic style
• Finish: Polished steel with copper inlay

Sizing Guide

The oversized finger holes are specifically designed for larger hands and accommodate most adult users comfortably. This is a "big finger friendly" design - ideal for users who find standard knuckle dusters too tight. The substantial 15mm thickness distributes pressure evenly across the palm for comfortable grip despite the 480g weight.

440C Stainless Steel Advantage

440C is a premium high-carbon stainless steel traditionally used in high-end cutlery and surgical instruments. Compared to standard 304 stainless steel, 440C offers:

• Superior Hardness: HRC 58-60 vs. HRC 20-25 for 304 steel - significantly harder and more impact-resistant
• Exceptional Edge Retention: High carbon content maintains sharp edges and crisp details indefinitely
• Enhanced Durability: Martensitic crystal structure provides superior toughness under stress
• Corrosion Resistance: Stainless properties prevent rust while maintaining hardness
• Premium Aesthetic: Takes a brilliant polish and maintains finish better than softer steels

Copper Inlay Artistry

Each knuckle features hand-set metallic copper sheet inlays with different patterns on front and back surfaces. The copper provides stunning visual contrast against the polished steel - warm reddish-gold tones against cool silver create a distinctive two-tone aesthetic. The inlay work is precision-fitted and secured, ensuring durability while adding artistic flair.

Copper Patina Development

The copper inlays will naturally develop a rich patina over time, transitioning from bright copper to deep bronze and eventually verdigris green if exposed to moisture. This aging process adds character and makes each piece increasingly unique - a living finish that tells the story of your ownership.

Collector's Piece

The combination of premium 440C steel, artisan copper inlay work, and substantial 480g weight makes this knuckle duster a true collector's item. It's equally at home in a display case or tactical kit - a functional art piece that represents the highest tier of knuckle duster craftsmanship.

What's Included

• 1× 440C Stainless Steel Four Finger Knuckle with Copper Inlay

⚠️ Legal Notice: Knuckle dusters are prohibited in many jurisdictions. Check federal, state, and local laws before purchase. This product is sold as a collectible item only. Buyer assumes all legal responsibility for possession and use.