RUKO HGB-DIN2181-HSS-60°-MF-6x0.50mm Center Drill

Precision center holes are the foundation of accurate turning, grinding, and machining operations. The RUKO HGB-DIN2181-HSS-60°-MF-6x0.50mm Center Drill combines a pilot drill and 60° countersink in one tool, ensuring perfectly aligned centers for subsequent drilling or lathe work.

Who is it for

Machinists, toolmakers, and metalworking professionals who demand reliable center drilling in steel, cast iron, and non-ferrous metals. Suitable for use on lathes, milling machines, and drill presses.

Main features

• Combined drill and countersink per DIN 333 A
• High-speed steel (HSS) with bright finish
• 60° countersink angle for standard centers
• Pilot drill diameter 2.0 mm, body diameter 6.3 mm
• Right-hand cutting, cylindrical shank
• Precision ground for accurate centering

Specifications

• Tool type: Center drill (combined drill and countersink)
• Standard: DIN 333 A
• Material: High-speed steel (HSS)
• Countersink angle: 60°
• Pilot drill diameter (d1): 2.0 mm
• Body diameter (d2): 6.3 mm
• Cutting direction: Right-hand
• Shank type: Cylindrical
• Surface finish: Bright (uncoated)
• Point angle (pilot drill): 118°
• Number of flutes (pilot drill): 2
• Overall length (L): 50 mm
• Pilot drill length (l1): 7 mm
• Countersink length (l2): 10 mm
• Tolerance (body diameter): h8

Tips

Use appropriate cutting fluid and correct speeds for the workpiece material. Ensure the tool is securely held and the workpiece is properly aligned to achieve accurate center holes.