Spiral drill INOX dia. 7.4 mm HSS-E Co5 N DIN 338 135° for tough and hard materials

Technical information

Angle: 135 °
Diameter: 7.4 mm
Flute length: 69 mm
Helix angles: 36
Length, total: 109 mm
PFERD TOOLS type: SPB DIN338 HSSE N 7,4 INOX
RPM, grey cast iron, white cast iron: 440 - 1.080 RPM
RPM, hard non-ferrous metals: 1.080 - 2.160 RPM
RPM, rust and acid-resistant steels: 440 - 870 RPM
RPM, soft non-ferrous metals: 1.300 - 2.590 RPM
RPM, steels over 700 N/mm²: 870 - 1.076 RPM
RPM, thermoplastics, fibre-reinforced plastics (GRP/CRP): 650 - 1.730 RPM
Version: INOX
Packaging unit: 10 pieces

Description

Drilling tools with cross grinding for industrial uses. Fully ground, right-hand turning versions that produce precise drill holes thanks to their high concentricity and exact centring. PFERD TOOLS offers spiral drills in the STEEL (118 ° point angle) and INOX (135 ° point angle) versions.

High-performance drilling tools in the INOX in HSSE-Co5 (M35) version for industrial uses. Fully ground right-hand turning version with cross grinding that produces precise drill holes thanks to their high concentricity and exact centring.

Advantages

Very good chip removal.
High concentricity.
Exact centring and low feed force thanks to cross grinding.
Particularly well suited for tough and hard materials, such as alloyed and high-strength steel, stainless steel (INOX).
Robust tip profile.
Very long tool life.
Very good temperature resistance due to Co content.

Recommendations for use

Observe the recommended rotational speeds.
When drilling metals, use a high-quality cutting oil or coolant, if possible. This facilitates smooth running and extends the drill tool life. Exception: when working on aluminium, use kerosene instead of cutting oil.
When working on stainless steel (INOX), remove any particles that break away from the workpiece in order to avoid corrosion. Clean the workpiece chemically or mechanically (etching/polishing, etc.).

Safety notes

Wear eye protection!
Follow the safety instructions!

Materials that can be worked: Aluminium; Annealed cast iron; Black annealed cast iron (GTS, GJMB); Brass; Bronze; Case-hardened steels; Casting scale; Casting scale with sand contamination and metal contamination; Cast iron; Cast steel; Chipboard; Cobalt-based alloys; Copper; Ductile cast iron; Elastomers; Fibre-reinforced thermosetting plastics (GRP, CRP); Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content > 40 %; Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content ≤ 40 %; Grey/nodular cast iron (GG/GJL, GGG/GJS); Hard aluminium alloys; Hard non-ferrous metal; Hardwood; High-temperature-resistant materials; Nickel-based alloys (e.g. Inconell and Hastelloy); Nickel or titanium-based superalloys; Other; Other non-ferrous metals; Plastics; Roller-bearing and ball-bearing steels; Soft aluminium alloys; Soft non-ferrous metal; Soft titanium alloys (tensile strength 500 N/mm²); Soft wood; Stainless steel (INOX); Steel; Steel, cast steel; Steels over 700 N/mm² (> 220 HB); Steels up to 1,200 N/mm² (< 38 HRC); Steels up to 700 N/mm² (< 220 HB); Thermoplastics; Thermosetting plastics; Titanium; Titanium alloys; Tool steels; Tough aluminium alloys; White annealed cast iron (GTW, GJMW); Wood; Zinc

Applications: Drilling

Drive types: Automated centres; Column drill; Power drill; Tool machine

Downloads

brochure-drilling-and-countersink-tools-2022-web-en.pdf

HSS spiral drill, version HSSE N INOX

Spiral drill INOX dia. 7.4 mm HSS-E Co5 N DIN 338 135° for tough and hard materials

SPB DIN 338 HSSE N 7,4 INOX

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