AVTJRCBSHSS Countersink Cutter CBS已售出0個HSS Countersink Cutter CBS is a Japan-made HSS form milling cutter, designed for countersinking and chamfering screw holes for flat-head screws. Available in screw sizes M3~M8, flute length 7.5~18.5mm, overall length 37~64mm, 4 flutes. Machines carbon & alloy steel, aluminum/copper & non-ferrous, up to HRC30.
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Product Overview: HSS Countersink End Mill – CBS Series
【Product Features & Why We Recommend It】
- Japanese Original Manufacturer Quality: Manufactured directly by a Japanese original factory with rigorous quality control — recommended for users with high demands on countersink (tapered counterbore) forming accuracy and tool consistency.
- Countersink Dedicated Geometry: Features a specialized countersink tapered forming geometry — recommended for precision machining of flat head screw and countersunk screw tapered seating surfaces, ensuring taper angle profile and seat surface finish meet screw head fit requirements to achieve the standard assembly result of screws fully flush with the workpiece surface.
- 4-Flute Stable Forming: The 4-flute configuration evenly distributes cutting load — recommended for precision countersink forming and finishing operations, effectively improving tapered surface finish quality and angle consistency.
- Straight Shank Universal Clamping: The straight shank design is compatible with standard end mill holders and drill press chucks — recommended as the standard configuration for countersink machining, offering convenient and stable clamping.
- Compact Specification Flexible Selection: Available in diameter 3–8mm — recommended for flexible selection based on screw specifications and workpiece hole diameter, suitable for countersink machining needs across various precision mechanical components and sheet metal parts.
【Machining Applications & Uses】
- Primary Use: Countersunk screw tapered seating surface forming, flat head screw counterbore machining, and precision milling of various tapered chamfers.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC30, with the 4-flute design delivering stable countersink forming cutting performance.
- N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and engineering plastics — softer and adhesion-prone materials where the use of appropriate cutting fluid is recommended to ensure smooth chip evacuation and tapered surface quality during countersink machining.
