DIN335C 3 Flutes HSS Countersink for Chamfering

Category: Countersinks

countersink

Product Details

Technical Data

Item	Details
Material	High-Speed Steel (HSS); M35 HSS with 5% cobalt or carbide alternatives are also available for enhanced performance.
Flute & Cutting Angle	3 flutes; standard cutting angle is 90° (matches most machine/wood screws), and optional angles like 60°, 75°, 120° are offered.
Dimensions	Cutting diameter ranges from 4.3mm to 40mm; typical overall length is around 40 – 60mm, with shank diameter usually 4.0mm or customized.
Shank Type	Predominantly round shank (compatible with most toolholders); optional tri – flat, hex, or taper shanks are available for different chuck needs.
Surface Finish	Common options include bright uncoated, TiN – coated, black oxide, or TiAlN – coated for improved wear resistance.

Advantages

Stable & Smooth Cutting: The 3 – flute design boosts chip removal efficiency, reduces clogging, and minimizes chatter during operation, ensuring scratch – free and burr – free hole surfaces.
Strong Compatibility: Compliant with DIN ISO 7721 and 7991 standards, its size matches the heads of standard DIN screws, making it ideal for countersinking to let screw heads sit flush.
Durable & Versatile: HSS balances hardness and toughness for wear resistance. It works on metals, wood, plastic, and PCB boards, suiting both industrial production and general – purpose machining.
Reliable Performance: CBN deep – ground flutes (common in premium models) create sharper cutting edges, while radial back – off clearance ensures low – heat operation and consistent cutting precision.