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| Specification : | |
| Brand | BAUM Professional Tools |
| Model Code | ART 404 Metric Matrix |
| Product Category | Professional 1/2-Inch Drive (12.7mm) Male Hexagonal / Allen Bit Sockets |
| Base Housing Metallurgy | Drop-Forged Chrome Vanadium Alloy Steel (Premium CrV Core) |
| Bit Insert Metallurgy | High-Tensile Hardened & Tempered Hex-Drive Tool Alloy Steel |
| Surface Finish (Exterior) | Corrosion-Proof Scratch-Resistant Matte Finish Double Chrome Plating |
| Surface Finish (Interior) | Moisture-Blocking Aluminum Painted Coating (Inside Square Receiver) |
| Grip & Safety Retention | Precision Machined Slotted Base with High-Traction Speed Knurling Band |
| Available Loose Sizes | 4mm | 5mm | 6mm | 7mm | 8mm | 10mm | 12mm | 14mm | 17mm | 19mm |
| Tool Compatibility | 1/2" Drive Hand Ratchets, Flex Breaker Bars, Extension Adjusters, and Speeders |
| Application Scope | Industrial Socket-Head Fasteners, Brake Assemblies, Transmission Case Repairs |
Premium Forged Chrome Vanadium (CrV) Base: Main housing shell is hot-forged from structural-grade CrV alloy steel to handle intensive leverage without expansion or cracking.
Dual-Layer Armor Matt Chrome Shielding: Coated with an advanced industrial matte finish double chrome plating that completely insulates the tool steel from workshop humidity, grease, and rust.
Precision Slotted and Knurled Base Profile: Machine-cut outer knurling zone ensures effortless manual pre-turning with oily fingers, while strategic corner detent slots provide zero-slip ratchet lock.
Aluminum Painted Internal Drive Hub Cavity: Layered with a high-adhesion protective internal aluminum paint compound inside the female square drive to reject moisture tracking and hidden metal oxidation.
Ten Standard Mechanical Loose Sizes: Available in standalone space configurations tailored for tight machine assemblies (4mm to 8mm), standard automotive service (10mm to 14mm), and massive industrial drivetrain anchors (17mm & 19mm).