RUKO SPB-DIN338 17.0mm Roll-Forged HSS Twist Drill Bit

Drilling large-diameter holes in tough materials demands a bit that stays sharp, cuts cleanly, and withstands heat. The RUKO SPB-DIN338 17.0 mm roll-forged twist drill bit answers that need with high-speed steel construction and a black oxide finish for durability and chip evacuation.

Who is it for

This drill bit is for machinists, metalworkers, and serious DIYers who need a reliable 17 mm bit for steel, cast iron, non-ferrous metals, plastics, and wood. It fits standard drill chucks with its cylindrical shank.

Main features

• Roll-forged HSS (HSS-R) body for toughness and wear resistance
• DIN 338 standard geometry with 118° point angle for general-purpose drilling
• Black oxide surface treatment reduces friction and improves chip flow
• Right-hand cutting direction with type N helix for efficient material removal
• Precision h8 tolerance for consistent hole sizing

Specifications

• Drill bit type: Twist drill bit
• Diameter: 17.0 mm
• Overall length: 191 mm
• Working length (flute length): 125 mm
• Shank type: Cylindrical
• Material: High-speed steel (HSS)
• Manufacturing process: Roll-forged (HSS-R)
• Standard: DIN 338
• Point angle: 118°
• Surface treatment: Black oxide
• Cutting direction: Right-hand cut
• Tolerance: h8
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Packaging quantity: 1 piece

Tips

Use cutting fluid when drilling steel to extend bit life. For deep holes, withdraw the bit periodically to clear chips. Always secure the workpiece and wear eye protection.