GRAPHITE HSS-TiN metalliporrasarja 1,0-13,0 mm, 25 osaa

Drilling through metal can be frustrating when bits dull quickly, wander off center, or snap under pressure. The GRAPHITE HSS-TiN Metal Drill Bits set solves these problems with a 25-piece collection covering every diameter from 1.0 mm to 13.0 mm in 0.5 mm increments. Each bit is made from high-speed steel and coated with titanium nitride (TiN), which increases surface hardness, reduces friction, and extends tool life. The 135° split point design bites into material instantly, eliminating the need for center punching and preventing walking on smooth surfaces. Whether you are working with steel, non-ferrous metals, plastics, or wood, these fully ground twist drills deliver clean, accurate holes with less effort.

Who is it for

This set is ideal for professional mechanics, metal fabricators, maintenance technicians, and serious DIYers who demand precision and durability. It suits anyone who regularly drills into metal sheets, profiles, pipes, or machine parts and needs a complete range of sizes at hand. From small pilot holes to larger clearance holes, the incremental sizing ensures you always have the right bit without guesswork.

Main features

• 25-piece set with diameters from 1.0 mm to 13.0 mm in 0.5 mm steps
• HSS-TiN construction: high-speed steel with titanium nitride coating for enhanced hardness and corrosion resistance
• 135° split point for fast starting and reduced walking
• Fully ground flutes for smooth chip evacuation and accurate holes
• DIN 338 standard for consistent quality and compatibility
• Right-hand cut, cylindrical shank fits standard drill chucks
• Supplied in a sturdy metal storage case for organization and protection

Specifications

• Material: HSS-TiN (High-Speed Steel with Titanium Nitride Coating)
• Type: Twist drill bit
• Set quantity: 25 pieces
• Diameter range: 1.0 mm – 13.0 mm
• Included diameters: 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, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0 mm
• Point angle: 135° split point
• Cutting direction: Right-hand
• Shank type: Cylindrical
• Standard: DIN 338
• Manufacturing process: Fully ground
• Storage case: Metal
• Application: Metal, non-ferrous metals, plastics, wood

Tips

For best results, use cutting fluid or lubricant when drilling hard metals to reduce heat and prolong bit life. Start with a smaller pilot hole for diameters above 8 mm to improve accuracy. Store bits in the provided case to prevent damage to the coated surfaces. Always wear safety glasses and secure the workpiece before drilling.