Punta elicoidale RUKO SPB-DIN338-HSS-TiN 9,75 mm

The RUKO SPB-DIN338-HSS-TiN twist drill bit in 9.75 mm diameter is a fully ground, split-point drill with a titanium nitride coating. It is built for clean, self-centering starts in steel, cast iron, non-ferrous metals, plastics, and stainless steel up to 800 N/mm². The TiN coating reduces friction and increases surface hardness to approximately 2300 HV, allowing higher cutting speeds and longer tool life compared to uncoated HSS drills.

Highlights

• DIN 338 standard, type N twist drill with 135° split point
• High-speed steel (HSS) with titanium nitride (TiN) gold coating
• Fully ground flutes for accurate hole quality
• Right-hand cutting, cylindrical shank with 9.75 mm diameter
• Overall length 133 mm, flute length 87 mm
• Heat resistant up to 600°C

In daily use

This drill bit is intended for general-purpose drilling in workshops and on-site. The split point reduces walking and the need for center punching. The TiN coating lowers friction, which helps with chip evacuation and reduces heat build-up. Suitable for use in hand drills and stationary machines with a 9.75 mm chuck capacity.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 9.75 mm
• Shank type: Cylindrical (straight shank)
• Shank diameter: 9.75 mm
• Point angle: 135°
• Point type: Split point (self-centering)
• Cutting direction: Right-hand cutting
• Overall length: 133 mm
• Flute length: 87 mm
• Manufacturing process: Fully ground
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics, stainless steel (up to 800 N/mm²)
• Application: General purpose drilling, industrial and professional use
• Color: Gold (TiN coating)
• Heat resistance: Up to 600°C
• Surface hardness: Approx. 2300 HV
• Friction coefficient: Reduced

Final note

A dependable DIN 338 twist drill with TiN coating for demanding drilling tasks in metal and other materials.