Broca helicoidal RUKO SPB-DIN338-HSSCo8-Ø4,5mm HSS-Co 8% cobalto DIN 338

This twist drill bit is made from HSS-Co 8% cobalt alloyed high-speed steel, which provides high heat resistance and durability when drilling tough materials. The 135° split point enables self-centering and reduces walking, while the fully ground flutes ensure efficient chip removal and precise holes. Conforming to DIN 338, it features a cylindrical shank and a bright finish.

Highlights

• HSS-Co 8% cobalt steel for high heat resistance and extended tool life
• 135° split point for self-centering and reduced walking
• Fully ground flutes for smooth chip evacuation and accurate drilling
• DIN 338 standard with cylindrical shank for secure chuck grip
• Suitable for stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steels, cast iron, and non-ferrous metals

In daily use

Ideal for professional metalworking tasks, this drill bit delivers reliable performance in demanding materials. The split point allows precise starting without a center punch, saving time and improving hole quality. The bright finish reduces friction and helps clear chips, making it a dependable choice for workshop or industrial use.

Full specifications

• Drill Bit Type: Twist Drill Bit
• Material: HSS-Co 8% (High-Speed Steel with 8% Cobalt)
• Standard: DIN 338
• Diameter: 4.5 mm
• Overall Length: 80 mm
• Working Length (Flute Length): 47 mm
• Shank Type: Cylindrical (Straight Shank)
• Point Angle: 135°
• Point Type: Split Point (Cross-ground point)
• Surface Finish: Bright
• Cutting Direction: Right-hand cutting
• Tolerance: h8
• Application Materials: Stainless Steel, Acid-Resistant Steel, Heat-Resistant Steel, High-Alloy Steels, Cast Iron, Non-Ferrous Metals
• Manufacturing Process: Fully Ground
• Heat Resistance: High
• Self-Centering: Yes
• Recommended Max Tensile Strength: Up to 1100 N/mm²
• Packaging Quantity: 1 Piece

Final note

Engineered for precision and longevity, this cobalt drill bit tackles tough metals with ease, making it a valuable addition to any professional toolkit.