| Specification : | |
| Brand | BAUM Professional Tools |
| Model Designation | ART 446/9M |
| Product Category | 9-Piece Metric Ball-End L-Shaped Hex Key Set |
| Material Base | Industrial High-Grade Forged Alloy Steel |
| Structural Hardness | 50 HrC (Rockwell Hardness Scale C) |
| Surface Treatment | Anti-Rust Chemical Black Oxide Matte Coating |
| Measurement Matrix | Metric Sizing System Standard |
| Tip Function Type | Standard Hex (Short Arm) / 25° Off-Axis Ball End (Long Arm) |
| Included Size Array | 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm |
| Storage Infrastructure | High-Impact Plastic Blow-Molded Clip Holder (Blow Case) |
| Application Scope | Obstructed Automotive Engine Repairs, Industrial Machinery, Complex Assemblies |
Angled Ball Point Long Arm: Specialized ball end allows the hex wrench to smoothly drive cap socket fasteners at angles up to 25 degrees, making it perfect for cramped spaces.
Premium High-Grade Alloy Steel: Forged from structural alloy steel to handle massive tightening torques without fracturing or deforming under load.
Industrial 50 HrC Hardness Rating: Controlled thermal tempering guarantees a hard 50 HrC tip structure, preventing rounding or stripping of fastener heads.
Corrosion-Proof Black Finish: Treated with a chemical black oxide surface layer that actively resists environmental rust, humidity, and workshop chemicals.
9-Piece Metric Kit with Blow Case: Delivers nine metric sizes (1.5mm to 10mm) organized in an impact-resistant storage block for quick identification.