SMART365 HSS-Co Step-Tec Twist Drill Bit 4.8 mm, 10-Piece Set

The SMART365 HSS-Co Step-Tec twist drill bit set offers precision and durability for metal drilling applications. This 10-piece set features 4.8 mm diameter bits made from high-speed steel with 5% cobalt (HSS-Co5), ensuring excellent heat resistance and long tool life. The 135° split point provides self-centering action for accurate starts without walking, while the cylindrical shank ensures compatibility with standard drill chucks. Manufactured to DIN 338 standards, these bits are ground from solid for consistent quality and performance.

Advantages

High-performance cobalt steel alloy delivers superior hardness and heat resistance, making these bits ideal for drilling tough materials like stainless steel and alloyed steels. The self-centering split point eliminates the need for pilot holes, increasing efficiency and reducing operator fatigue. Bright finish reduces friction and chip evacuation, enhancing cutting speed and surface finish.

Suitable for

• Alloyed and unalloyed steel
• Stainless steel
• Cast iron
• Acid-resistant steel
• Non-ferrous metals

Key specifications

• Drill Bit Type: Twist Drill Bit
• Material: HSS-Co (High-Speed Steel Cobalt)
• Drill Bit Diameter: 4.8 mm
• Quantity per Pack: 10 pieces
• Shank Type: Cylindrical
• Point Angle: 135°
• Standard: DIN 338
• Cutting Direction: Right-hand cut
• Surface Finish: Bright (Uncoated)
• Flute Type: Standard Spiral Flute
• Tolerance Class: h8
• Cobalt Content: 5% (HSS-Co5)
• Manufacturing Process: Ground from solid
• Self-Centering Point: Yes (135° split point)

Recommendations

For optimal performance, use appropriate cutting speeds and lubrication when drilling stainless steel or other hard materials. Always wear safety glasses and follow manufacturer guidelines for drilling operations.