RUKO LOS-HSS-G40,0mm Precision Ground Twist Drill Bit, 40.0 mm, DIN 338, HSS

This RUKO twist drill bit stands out with its precision ground flutes and 40.0 mm diameter, delivering clean, accurate holes in a wide range of materials. Unlike standard rolled drills, the HSS-G grinding process ensures sharper cutting edges and better chip evacuation, making it a reliable choice for demanding workshop tasks.

Highlights

• Precision ground from high-speed steel (HSS-G) for superior cutting performance
• Large 40.0 mm diameter with cylindrical shank for secure chuck grip
• DIN 338 standard with 118° point angle for general-purpose drilling
• Right-hand cut with bright finish for smooth operation

In daily use

Whether you are enlarging an existing hole or drilling from scratch, this bit's standard spiral flute clears chips efficiently, reducing heat and friction. It works well in steel, cast iron, non-ferrous metals, plastics, and wood, making it a versatile addition to any toolbox.

Full specifications

• Material: High-Speed Steel (HSS)
• Drill Bit Type: Twist Drill Bit
• Grinding Type: Precision Ground (HSS-G)
• Drill Diameter: 40.0 mm
• Shank Type: Cylindrical Shank
• Standard: DIN 338
• Point Angle: 118°
• Flute Type: Standard Spiral Flute
• Direction of Cut: Right-Hand Cut
• Surface Finish: Bright / Uncoated
• Application: General Purpose Drilling
• Suitable Materials: Steel, Cast Iron, Non-Ferrous Metals, Plastics, Wood
• Manufacturing Process: Precision Ground
• Overall Length: 280 mm
• Working Length (Flute Length): 180 mm
• Tolerance: h8
• Packaging: Single Piece

Final note

Backed by RUKO's reputation for precision tooling, this drill bit is a dependable choice for professionals and serious DIYers who need consistent results in large-diameter drilling.