GRAPHITE HSS-Co 7.0 mm Metal Drill Bits, 10-Pack

For drilling into tough metals, these GRAPHITE HSS-Co twist drill bits deliver high heat resistance and durability thanks to a 5% cobalt alloy. The 135° split point starts on contact without wandering, and the fully ground flutes clear chips efficiently in steel, stainless steel, cast iron, and non-ferrous metals.

Highlights

• HSS-Co (5% cobalt) for high heat resistance and long life in hard metals
• 135° split point for self-centering and reduced walking
• Fully ground, right-hand spiral flutes for smooth chip evacuation
• Cylindrical shank fits standard drill chucks
• DIN 338 standard, h8 tolerance for precise holes
• Pack of 10 drill bits in a plastic case

In daily use

Mount the bit in a corded or cordless drill or drill press. The split point bites immediately, so you can drill without a center punch. Use cutting fluid on stainless steel to extend bit life. The bright, uncoated surface reduces friction and resists corrosion in normal workshop conditions.

Full specifications

• Drill bit type: Twist drill bit
• Diameter: 7.0 mm
• Material: HSS-Co (5% cobalt)
• Quantity: 10 pieces
• Shank type: Cylindrical
• Standard: DIN 338
• Point angle: 135°
• Cutting edge: Split point
• Flute type: Right-hand spiral
• Manufacturing process: Fully ground
• Surface finish: Bright (uncoated)
• Tolerance class: h8
• Application: Metal drilling (steel, stainless steel, cast iron, non-ferrous metals)
• Packaging: Plastic case
• Colour: Metallic grey

Final note

With cobalt alloy and a self-centering tip, these bits handle demanding metalwork where standard HSS bits overheat and dull quickly.