RUKO KEB-HM Weldon 37.0mm Solid Carbide High-Performance Drill Bit

The RUKO KEB-HM-Weldon-37.0mm is a solid carbide high-performance drill bit engineered for demanding CNC machining tasks. Its self-centering 140° point and AlCrN coating deliver precise, efficient drilling in steel, stainless steel, cast iron, and non-ferrous metals. The Weldon shank (DIN 1835 B) ensures secure clamping and high torque transmission, while internal cooling channels optimize chip evacuation and tool life.

Highlights

• Drill diameter: 37.0 mm with h7 tolerance
• Solid carbide construction with AlCrN coating for wear resistance
• Weldon shank (32 mm) for stable, high-torque clamping
• Internal cooling system for efficient heat dissipation
• Self-centering 140° point angle reduces walking and improves hole accuracy
• Optimized 30° helix angle for smooth chip flow

In daily use

This drill bit excels in industrial production environments, offering reliable performance up to 5×D drilling depth. Its precision-ground flutes and two-flute design balance chip removal and rigidity, making it suitable for a wide range of materials from tough steels to non-ferrous alloys. The Weldon shank allows quick tool changes and repeatable positioning in CNC machining centers.

Full specifications

• Drill diameter: 37.0 mm
• Shank diameter: 32 mm
• Shank type: Weldon (DIN 1835 B)
• Tool material: Solid carbide
• Coating: AlCrN (Aluminum Chromium Nitride)
• Point angle: 140°
• Helix angle: 30°
• Number of flutes: 2
• Diameter tolerance: h7
• Overall length: 170 mm
• Flute length: 90 mm
• Cooling: Internal
• Recommended drilling depth: up to 5×D
• Manufacturing standard: DIN 6535 HB (shank)
• Application: Steel, stainless steel, cast iron, non-ferrous metals

Final note

A high-performance solid carbide drill bit that combines precision, durability, and efficient chip evacuation for demanding CNC operations.