RUKO SPB-Set 25-Piece HSS-Co Twist Drill Bit Set, DIN 338, Type N, 135° Split Point, 1-13 mm, Metal Cassette

This 25-piece twist drill bit set from RUKO is engineered for high-performance drilling in tough materials. Crafted from HSS-Co with 5% cobalt, these bits deliver exceptional heat resistance and wear resistance, making them ideal for steel, stainless steel, cast iron, and non-ferrous metals.

Overview

The RUKO SPB-Set 25tlg-TX-DIN338-HSSCo-Stahlbl. is a comprehensive set of 25 twist drill bits in sizes from 1.0 mm to 13.0 mm in 0.5 mm increments. Each bit is manufactured to DIN 338 standards with a Type N geometry and a 135° split point for self-centering and reduced walking. The bits are ground from solid HSS-Co (5% cobalt) for durability and precision, with a bright finish and h8 tolerance. The set comes in a robust metal cassette for organized storage.

What stands out

• 25-piece set covering 1.0–13.0 mm in 0.5 mm steps
• HSS-Co with 5% cobalt for high heat and wear resistance
• 135° split point for accurate starting without center punch
• DIN 338 standard, Type N geometry for general-purpose drilling
• Bright finish and h8 tolerance for consistent performance
• Robust metal cassette for secure storage and transport

Technical details

• Drill bit type: Twist drill bit
• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Geometry: Type N
• Point angle: 135°
• Point type: Split point
• Shank type: Cylindrical
• Surface finish: Bright
• Tolerance: h8
• Number of pieces: 25
• 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
• Packaging: Robust metal cassette

Our verdict

A professional-grade drill bit set that covers the most common sizes with cobalt-enhanced durability and precision grinding. The split point design ensures accurate holes, while the metal cassette keeps everything organized. Ideal for workshops and demanding applications.