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| Specification Attribute | Technical Detail |
| Brand | BLACK+DECKER |
| Product Series / Model Name | Ergonomic Triangular Hand File (Three-Square File) |
| Model / SKU Number | BDHT22147 |
| Product Category | Abrasive Hand Tools / Triangular File |
| Working Blade Length | 200 mm (20 cm / 8 Inches) |
| Cross-Sectional Shape | Equilateral Triangle (Three 60° Cutting Faces) |
| Blade Material | Tempered High-Carbon Alloy Tool Steel |
| Cut Profile | Precision-Milled Double-Cut Tooth Pattern |
| Handle Construction | Ergonomic Bi-Material Cushioned Grip (High-Visibility Orange & Black) |
| Surface Finish | Anti-Rust & Corrosion-Resistant Protective Treatment |
| Target Working Materials | Ferrous & Non-Ferrous Metals, Hardwoods, Softwoods, Plastics & Saw Blades |
| Target Work Environments | Metal Fabrication Shops, Saw Mills, Carpentry Studios & Maintenance Toolkits Across Nepal |
| Best Used For | Hand Saw Tooth Sharpening, Filing 90°/60° Internal Corners, Deburring Keyways & V-Groove Cleaning |
Equilateral Three-Square 60° Profile: Precision three-sided design easily accesses acute internal angles, cleans V-grooves, and sharpens hand saw teeth with consistent geometry.
High-Carbon Heat-Treated Tool Steel: Forged from tempered carbon steel with precision-milled teeth for high cutting efficiency, wear resistance, and extended tooth sharpness.
Ergonomic Bi-Material Anti-Slip Grip: Contoured dual-density handle provides a firm, cushioned hold, absorbing vibration and reducing hand fatigue during meticulous filing tasks.
Tapered Design for Narrow Clearances: Tapered tip easily enters narrow slots, tight notches, and small keyways for progressive material removal and detail shaping.
Rust & Corrosion-Resistant Treatment: Surface treated with a protective anti-corrosion layer to resist moisture, humidity, and atmospheric wear in demanding workshop environments.