GRAPHITE HSS-CNC Metal Drill Bits, 124°, Pro-Tec, 1.0-10.0 mm, Set of 19

Drilling precise holes in metal can be a challenge without the right tools—dull bits, wandering tips, and poor chip evacuation lead to frustration and wasted material. This 19-piece HSS-CNC drill bit set from GRAPHITE solves those problems with precision-ground, split-point geometry and a 124° tip angle optimized for clean, accurate cuts in steel, cast iron, non-ferrous metals, and plastics.

Who is it for

Professional machinists, CNC operators, metal fabricators, and serious DIYers who demand consistent performance and long tool life. Whether you're working on a production line or in a home workshop, these bits deliver the accuracy and durability needed for demanding metal drilling tasks.

Main features

• High-speed steel (HSS) construction with bright finish for excellent wear resistance and corrosion protection.
• 124° split point tip reduces walking and requires less center punching, allowing faster, more accurate starts.
• Precision ground to DIN 338 standards with h8 tolerance for consistent diameter and concentricity.
• Right-hand cutting direction with cylindrical shank fits standard drill chucks, hand drills, pillar drills, and CNC machines.
• Complete size range from 1.0 mm to 10.0 mm in 0.5 mm increments, covering most common metal drilling needs.
• Durable storage case keeps bits organized and protected, with labeled compartments for quick size identification.

Specifications

• Material: High-Speed Steel (HSS)
• Drill bit type: Twist drill bit
• Point angle: 124°
• Shank type: Cylindrical
• Set quantity: 19 pieces
• Diameter range: 1.0 mm – 10.0 mm
• Included sizes: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm
• Manufacturing standard: DIN 338
• Cutting direction: Right-hand
• Surface finish: Bright
• Point type: Split point
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics
• Compatibility: Hand drills, pillar drills, CNC machines
• Storage: Durable case
• Manufacturing process: Ground (HSS-G equivalent)
• Tolerance class: h8

Tips

For best results, use cutting fluid when drilling steel or cast iron to reduce heat and extend bit life. Start with a center punch or use the split point to minimize walking. Apply moderate, consistent pressure and avoid excessive speed—let the bit do the work. Store bits in the case after use to prevent damage to cutting edges.