RUKO SPB-DIN338-15/32-HSSCo HSS-Co Twist Drill Bit 15/32 inch (11.91 mm) DIN 338

Drilling into hard steels and stainless alloys quickly dulls ordinary bits, wasting time and money. The RUKO SPB-DIN338-15/32-HSSCo twist drill bit solves this with a 5% cobalt HSS-Co construction that retains hardness at high temperatures.

Who is it for

Machinists, metalworkers, and serious DIYers who regularly drill alloyed steel, cast iron, stainless steel, acid-resistant steel, non-ferrous metals, and plastics.

Main features

• DIN 338 standard twist drill bit with 15/32 inch (11.91 mm) diameter.
• HSS-Co (High-Speed Steel with 5% Cobalt) for high heat and wear resistance.
• 135° split point for self-centering and reduced walking.
• Cylindrical shank, right-hand cut, fully ground with bright finish.
• h8 tolerance for precise hole sizing.

Specifications

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 338
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Cobalt Content: 5%
• Diameter: 15/32 inch (11.91 mm)
• Shank Type: Cylindrical
• Point Angle: 135°
• Point Type: Split Point (Self-Centering)
• Flute Type: Standard Spiral Flute
• Surface Finish: Bright
• Tolerance: h8
• Manufacturing Process: Fully Ground
• Cutting Direction: Right-Hand Cut
• Overall Length: 151 mm
• Working Length (Flute Length): 101 mm
• Recommended Materials: Alloyed and Unalloyed Steel, Cast Iron, Stainless Steel, Acid-Resistant Steel, Non-Ferrous Metals, Plastics

Tips

Use cutting fluid when drilling stainless or acid-resistant steel to extend bit life. For deep holes, withdraw the bit periodically to clear chips and reduce heat buildup.