PFERD TOOLS 25203863 SPB DIN 340 HSSE N 4,0 INOX Stainless steel (INOX) Twist drill bit 4 mm Total length 119 mm DIN 340

Drilling tools with cross-grinding for industrial applications Fully ground, right-rotating versions, which generate precise drill holes thanks to their high concentricity and exact centering. Twist drill bits offer PFERD in the STEEL (118° tip angle) and INOX (135° tip angle) versions. High performance drilling tools in the INOX model in HSSE-Co5 (M35) for industrial applications. Fully ground right-hand cut design with cross polished section, which produces accurate boreholes thanks to its high concentricity and exact centering. Long twist drill bits according to DIN 340 with cylindrical shaft for deep drilling.


Technical data
- RPM of, gray cast iron, white cast iron: 800 RPM
- RPM of, hard non-ferrous metals: 2000 RPM
- RPM of stainless and acid-resistant steels: 800 RPM
- RPM of soft non-ferrous metals: 2390 RPM
- RPM of, steels above 700 N/mm²: 1600 RPM
- RPM of, thermoplastic plastics, fiber-reinforced plastics (GRP/CFK): 1200 RPM
- RPM to, gray cast iron, white cast iron: 2000 RPM
- RPM to, hard non-ferrous metals: 3990 RPM
- RPM to stainless and acid-resistant steels: 1600 RPM
- RPM to, soft non-ferrous metals: 4780 RPM
- RPM to, thermopl. Synthetic, fiber-optic. PLASTICS (GRP/CFK) 3190 RPM
- Design: INOX
- ø 4 mm
- Spiral angle, from: 36 °
- Angle: 135 °
- Spiral length 78 mm
- Length, total: 119 mm

Benefits:
- Particularly suitable for tough and hard materials such as alloyed and high-strength steel, stainless steel (INOX).
- Stable tip design.
- Very long service life.
- Very good temperature resistance due to co-component.
- Very good chip removal.
- High run-out accuracy.
- Precise centering and low feed force thanks to cross-ground.

Application recommendations:
- Observe recommended speeds.
- When drilling metals, use high-quality cutting oil or coolant as far as possible. This promotes smooth running and extends the lifetime of the drill. Exception: Apply petroleum instead of cutting oil when machining aluminum.
- Remove the particles from the workpiece when machining stainless steel (INOX) to prevent corrosion. Clean the workpiece chemically or mechanically (etching/polishing, etc.).

Editable materials:
- Aluminium
- Cast iron
- Black tempering casting (GTS, GJMB)
- Brass
- Bronze
- Non-alloy steel
- Cast iron
- Cast steel
- Crust
- Chipboard
- Cobalt base alloys
- Copper
- Ductile cast iron
- Duroplast
- Elastomers
- Fibre-reinforced thermoplastics (GRP, CFK)
- Fiber reinforced thermoset (GRP, CFK) fiber content ≤ 40%
- Fiber reinforced thermoplastics (GRP, CFK) fiber content greater than 40 %
- Grey iron / nodular iron (GG/GJL, GGG/GJS)
- Hard aluminum alloys
- Non-ferrous metal hard
- Nickel base alloys (e.g. Inconell and Hasteloy)
- Nickel or titanium super alloys
- Other non-ferrous metals
- Other
- Plastics
- Rolling and ball bearing steels
- Soft aluminum alloys
- Non-ferrous metal soft
- Soft titanium alloys (tensile strength 500 N/mm²)
- Soft wood
- Stainless steel (INOX)
- Steel
- Steel, cast steel
- Steels up to 1,200 N/mm² (less than 38 HRC)
- Steels above 700 N/mm² (greater than 220 HB)
- Steels up to 700 N/mm² (less than 220 HB)
- Thermoplastic
- Titanium
- Titanium alloys
- Tool steels
- Tough aluminum alloys
- White Templar Cast (GTW, GJMW)
- Wood
- Zinc

Processing tasks:
- Drilling

Drive types:
- Stator drill
- Machine tool
- Drill
- robots
- Stationary machines

Safety Instructions:
- Use eye protection!
- Observe safety recommendations!

This text is machine translated.