RUKO SPB-DIN338-HSS-G špirálový vrták s krížovým brúsom 12,7 mm

Precision drilling in tough materials demands a bit that starts exactly where you aim and cuts without wandering. The RUKO SPB-DIN338-HSS-G Split Point Twist Drill Bit 12.7 mm eliminates center-punching and pilot holes, delivering clean, accurate holes in steel, cast iron, non-ferrous metals, plastics, and wood.

Who is it for

Professional machinists, metalworkers, and serious DIYers who need a reliable, self-centering drill bit for high-precision work in metal and other materials.

Main features

• Split point (Kreuzanschliff) geometry with 135° point angle for self-centering and reduced thrust force
• Precision ground from high-speed steel (HSS-G) to DIN 338 standard with h8 tolerance
• Bright uncoated finish for excellent chip evacuation and reduced friction
• Cylindrical shank fits standard drill chucks
• Right-hand cut direction

Specifications

• Drill bit type: Twist drill bit
• Diameter: 12.7 mm (1/2 inch)
• Overall length: 151 mm
• Working length (flute length): 101 mm
• Material: High-speed steel (HSS-G)
• Point angle: 135°
• Shank type: Cylindrical
• Tolerance: h8
• Surface finish: Bright (uncoated)
• Manufacturing process: Precision ground
• Standard: DIN 338
• Series: SPB (Sparky Professional Bits)

Tips

Use a cutting fluid when drilling steel to extend bit life and improve hole quality. For deep holes, withdraw the bit periodically to clear chips.