SMART365 HSS-Co Step-Tec Twist Drill Bit 4.0 mm, 10-Piece Set for Metal

The SMART365 HSS-Co Step-Tec twist drill bits are engineered for precision drilling in metal, including steel, stainless steel, cast iron, and non-ferrous metals. This 10-piece set features 4.0 mm diameter bits with a 5% cobalt content for enhanced heat and wear resistance. The 135° split point ensures self-centering and reduced walking, making them ideal for both professional and DIY use.

Advantages

High-speed steel with cobalt (HSS-Co) provides superior durability and longer tool life. The split point design eliminates the need for a pilot hole, increasing efficiency. Fully ground manufacturing ensures consistent quality and sharpness. Compatible with corded drills, cordless drills, and drill presses.

Suitable for

• Drilling in steel, stainless steel, cast iron, and non-ferrous metals
• Professional metalworking, automotive repair, and construction
• Use with hand drills, drill presses, and CNC machines

Key specifications

• Drill Bit Type: Twist Drill Bit
• Material: HSS-Co (High-Speed Steel Cobalt)
• Cobalt Content: 5%
• Drill Bit Diameter: 4.0 mm
• Quantity per Pack: 10 pieces
• Shank Type: Cylindrical (Straight Shank)
• Point Angle: 135°
• Point Type: Split Point
• Standard: DIN 338
• Manufacturing Process: Fully Ground
• Cutting Direction: Right-hand cutting
• Finish/Coating: Bright finish
• Self-Centering: Yes
• Reduced Walking: Yes

Recommendations

For optimal performance, use appropriate cutting fluid and maintain moderate drilling speed. Always wear safety goggles when operating power tools.