RUKO SPB-DIN1897-HSSCo-Ø10.5mm Extra Long Twist Drill Bit

Precision-ground from solid HSS-Co5, this extra-long twist drill bit delivers a 135° split point for self-centering starts and a bright finish for clean chip evacuation—engineered for stainless and acid-resistant steels.

Overview

The RUKO SPB-DIN1897-HSSCo-Ø10.5mm is a professional-grade extra-long twist drill bit conforming to DIN 1897. Manufactured from high-speed steel with 5% cobalt (HSS-Co5), it offers superior heat resistance and wear characteristics for demanding drilling tasks. The cylindrical shank with h8 tolerance ensures precise chuck fitment, while the right-hand cutting direction suits standard drilling operations.

What stands out

• 135° split point geometry for accurate, self-centering starts without center punching
• Extra-long design: 184 mm overall length with 130 mm flute length for deep-hole drilling
• HSS-Co5 material withstands high temperatures, ideal for stainless and heat-resistant steels
• Bright surface finish reduces friction and improves chip flow
• Ground from solid for consistent quality and durability

Technical details

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 1897 (Extra Long)
• Material: HSS-Co (High-Speed Steel with Cobalt), 5% Cobalt
• Diameter: 10.5 mm
• Overall Length: 184 mm
• Flute Length: 130 mm
• Shank Type: Cylindrical / Parallel Shank, h8 tolerance
• Point Angle: 135°
• Point Type: Split Point (Self-centering)
• Surface Finish: Bright
• Cutting Direction: Right-hand cutting
• Application Materials: Stainless Steel, Acid-Resistant Steel, Heat-Resistant Steel, High-Alloy Steels, Cast Iron, Non-Ferrous Metals
• Recommended Use: Industrial, Professional
• Coolant Recommendation: Yes, for optimal performance and tool life
• Packaging: Individual
• Manufacturing Process: Ground from solid

Our verdict

A robust extra-long cobalt drill bit for professionals who need reliable deep-hole drilling in tough steels. The split point and HSS-Co5 construction make it a dependable choice for demanding applications.