Graphite 55H317 19-Piece HSS-G Metal Drill Bit Set, 1-10 mm in 0.5 mm Steps, DIN 338, 118° Point, Storage Case

When a maintenance technician needs to drill precise holes in steel brackets or a DIY enthusiast tackles a metal shelving project, having the right drill bits on hand makes all the difference. The Graphite 55H317 set delivers 19 high-speed steel (HSS-G) twist drill bits covering diameters from 1 mm to 10 mm in 0.5 mm increments, so the exact size is always within reach. Each bit is precision ground to DIN 338 with a 118° point angle and bright finish, ensuring clean starts and efficient chip removal in a wide range of metals and plastics.

Key specifications

• Product type: Drill bit set
• Application: Metal drilling
• Material: High-speed steel (HSS-G)
• Number of pieces: 19
• Bit diameter range: 1 mm – 10 mm (0.5 mm increments)
• Shank type: Cylindrical
• Point angle: 118°
• Standard: DIN 338
• Tip type: Precision ground tip
• Flute type: Spiral flute
• Surface finish: Bright (uncoated)
• Storage case material: Metal/plastic
• Compatibility: Rotary drills, drill presses
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground (G)
• Durability: High wear resistance
• Intended use: Professional & DIY

Why choose it

The complete size range eliminates guesswork and saves time on the job. HSS-G construction with precision grinding provides high wear resistance and consistent performance, while the 118° point angle suits general-purpose drilling in metal. The bright finish reduces friction and helps clear chips, extending bit life. A sturdy metal/plastic case keeps the set organised and protected, whether in a workshop or on the go.

Ideal use cases

• Drilling pilot holes and clearance holes in steel and cast iron
• Working with non-ferrous metals such as aluminium and brass
• Creating holes in plastic components and enclosures
• Professional maintenance, repair, and fabrication tasks
• DIY projects requiring a versatile metal drilling kit

Good to know

The set conforms to DIN 338, ensuring standard dimensions and compatibility with most drill chucks. Use appropriate cutting fluid when drilling hard metals to maximise bit life. Always secure the workpiece and wear eye protection. Store bits in the provided case to prevent damage and keep sizes organised.