HSS Twist Drill Bit 21 mm Morse Taper MK2 DIN 345 Ground Oxidized

Precision-ground from high-speed steel and finished with a black oxide coating, this 21 mm twist drill bit with Morse Taper 2 shank delivers reliable performance in demanding drilling tasks. Unlike standard straight-shank bits, the MK2 taper ensures a secure, self-locking fit in machine spindles, reducing slippage and improving concentricity.

Highlights

• 21.00 mm diameter with h8 tolerance for accurate holes
• Morse Taper 2 (MK2) shank for robust machine mounting
• Ground and oxidized surface for enhanced wear resistance
• DIN 345 compliant for industrial interchangeability
• Right-hand cutting with 118° point angle for general-purpose use

In daily use

The 145 mm flute length and 243 mm overall length provide ample chip clearance and reach for deep drilling operations. The black oxide finish reduces friction and helps prevent corrosion, extending tool life even in continuous production environments. Suitable for steel, cast iron, non-ferrous metals, and plastics, this bit is a versatile addition to any machine shop or maintenance department.

Full specifications

• Drill bit type: Twist drill bit
• Diameter: 21.00 mm
• Shank type: Morse Taper Shank
• Shank size: MK2
• Material: High-Speed Steel (HSS)
• Standard: DIN 345
• Surface finish: Ground and oxidized (black oxide)
• Flute length: 145 mm
• Total length: 243 mm
• Cutting direction: Right-hand
• Point angle: 118°
• Tolerance: h8
• Application: General purpose drilling
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground

Final note

Engineered for professionals who demand consistent hole quality and long service life, this DIN 345 twist drill bit is a dependable choice for industrial drilling applications.