RUKO SPB-DIN338-HSS-G-risti 11,1 mm kierreporanterä

Precision drilling in steel, cast iron, and non-ferrous metals demands a drill bit that starts exactly where you aim it. The RUKO SPB-DIN338-HSS-G-Kreuz 11.1 mm twist drill bit is built for machinists, metalworkers, and maintenance technicians who need clean, accurate holes without center-punching or wandering. Its split point (Kreuzanschliff) self-centers on contact, reducing feed pressure and improving hole quality in demanding workshop environments.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-G (high-speed steel, ground)
• Diameter: 11.1 mm
• Shank type: Cylindrical
• Point type: Split point (Kreuzanschliff)
• Point angle: 135°
• Total length: 142 mm
• Working length (flute length): 101 mm
• Surface finish: Bright
• Manufacturing process: Precision ground
• Tolerance: h8
• Coolant through: No

Why choose it

The split point geometry eliminates the need for a center punch, saving time and improving accuracy on curved or uneven surfaces. Precision grinding from HSS-G ensures consistent cutting edges and a longer service life compared to standard rolled bits. The bright finish reduces friction and chip adhesion, helping the bit run cooler in continuous use.

Ideal use cases

• Drilling steel and cast iron in fabrication and repair shops
• Creating precise holes in non-ferrous metals like aluminum and brass
• General maintenance tasks requiring a reliable 11.1 mm bit
• Working with plastics and wood when a clean, burr-free hole is needed

Good to know

This bit follows DIN 338, the standard for short series twist drills, offering a balanced length-to-diameter ratio for stability and reach. The cylindrical shank fits standard three-jaw chucks. For best results, use appropriate cutting fluid when drilling steel.