RUKO KES-DIN335-HSS-90°-Ø31.0mm Countersink Bit

Deburring and chamfering holes in steel, cast iron, non-ferrous metals, and plastics can be tedious with standard bits. This countersink bit cuts clean 90° chamfers with a 31.0 mm cutting diameter, eliminating sharp edges and preparing holes for flat-head screws.

Who is it for

Machinists, metalworkers, and maintenance technicians who need a reliable countersink for precise, repeatable results in a variety of materials.

Main features

• DIN 335 C standard countersink geometry
• High-Speed Steel (HSS) for durability
• 90° cutting angle for standard countersunk screws
• 31.0 mm cutting diameter
• 12.0 mm cylindrical shank
• 3 flutes for smooth cutting
• Right-hand cutting direction
• Ground profile for accuracy
• Uncoated bright finish

Specifications

• Tool Type: Countersink
• Standard: DIN 335 C
• Material: High-Speed Steel (HSS)
• Cutting Angle: 90°
• Cutting Diameter (d1): 31.0 mm
• Shank Type: Cylindrical Shank
• Shank Diameter (d2): 12.0 mm
• Overall Length (L1): 71.0 mm
• Number of Flutes: 3
• Surface Treatment: Uncoated / Bright Finish
• Application: Deburring, Chamfering, Countersinking
• Recommended Materials: Steel, Cast Iron, Non-ferrous Metals, Plastics
• Direction of Cut: Right-hand
• Manufacturing Method: Ground Profile
• Tolerance: h11

Tips

Use a suitable cutting fluid when working with steel to extend tool life. For best results, run at the recommended speed for the material and ensure the workpiece is securely clamped.