5pcs HSS-AL Countersink End Mill Cutter Bits
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The Story
This 5-piece set of HSS-AL countersink end mill cutters is designed for creating precise countersunk holes for bolts and screws. Made from super-hard high-speed steel with a hardness of HRC65~68, these cutters offer high toughness and abrasion resistance, making them suitable for milling copper, aluminum, steel, cast iron, and heat-treated molds. The set includes sizes M3 to M8, reducing tool change times and improving machining efficiency.
add_circle The Upside
- check High durability and wear resistance
- check Versatile for multiple materials
- check Improves machining efficiency by reducing tool changes
remove_circle The Downside
- close Manual measurement may have 1-2mm error
- close Color may vary slightly due to monitor differences
- close No brand information provided
Specifications & features
Key features
- check_circle Material: HSS-AL super-hard high-speed steel
- check_circle Hardness: HRC65~68
- check_circle Includes 5 sizes: M3, M4, M5, M6, M8
- check_circle High alignment precision for countersink and bottom holes
- check_circle Suitable for various materials including copper, aluminum, steel, cast iron
Specifications
Hardness
HRC65~68
Material
HSS-AL super-hard high-speed steel
Package Contents
5 pieces
Sizes included
M3, M4, M5, M6, M8
Tags
100 Piece Drill Bit Set
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