PFERD 20074 – HSS Twist Drill Bit, 135° Jobber Length, 3/4″ M35 INOX Stainless

PFERD 20074 – HSS Twist Drill Jobber Length M35 3/4″ INOX

Drill bits with cross grinding for industrial use. Fully ground, right-hand turning to produce precise drill holes due to their high concentricity and exact centering. PFERD offers spiral drills STEEL (118° point angle) and INOX (135° point angle) versions.High-performance HSSE-Co5 (M35) drill bit for industrial use on INOX and other non-ferrous metals. The fully ground right-hand turning design with cross grinding provides an exact centering drill tip and a high level of concentricity.

Advantages:

Very good chip removal.

High concentricity.

Exact centering and low feed force thanks to cross grinding.

Ideal for tough and hard materials, such as alloyed and high-strength steel, stainless steel (INOX).

Robust tip profile.

Very durable.

Very good temperature resistance due to Co content.

Recommendations for Use:

Observe the recommended rotational speed.

When drilling metals, use a high-quality cutting oil or cooling lubricant, if possible. This facilitates smooth running and extends the drill service life. Exception: when working on aluminum, use kerosene instead of cutting oil.

To avoid corrosion when working on stainless steel (INOX), remove any particles that break away from the workpiece. Clean the workpiece chemically or mechanically (etching/polishing, etc.).

Workpiece Materials:

Aluminum	Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content > 40 %	Soft wood
Annealed cast iron	Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content 40 %	Stainless steel (INOX)
Black annealed cast iron (GTS, GJMB)	Grey/nodular cast iron (GG/GJL, GGG/GJS)	Steel
Brass	Hard aluminium alloys	Steel, cast steel
Bronze	Hard non-ferrous metal	Steels over 220 HV (> 95 HB)
Case-hardened steels	Hardwood	Steels up to 220 HV (< 95 HB)
Casting scale	High-temperature-resistant materials	Steels up to 370 HV (< 38 HRC)
Casting scale with sand contamination and metal contamination	Nickel-based alloys (e.g. Inconell and Hastelloy)	Thermoplastics
Cast iron	Nickel or titanium-based superalloys	Thermosetting plastics
Cast steel	Other	Titanium
Chipboard	Other non-ferrous metals	Titanium alloys
Cobalt-based alloys	Plastics	Tool steels
Copper	Roller-bearing and ball-bearing steels	Tough aluminium alloys
Ductile cast iron	Soft aluminium alloys	White annealed cast iron (GTW, GJMW)
Elastomers	Soft non-ferrous metal	Wood
Fibre-reinforced thermosetting plastics (GRP, CRP)	Soft titanium alloys (tensile strength 500 N/mm²)	Zinc

Applications

Drilling

Compatible Power Tools:

Column drill

Power drill

Robot

Stationary machines

Tool machine

Specifications:

Item Number	25204068
Angle	135°
Dia.	3/4 Inch
EDP number	20074
Flute length	5 5/8 Inch
Overall length	7 41/64 Inch
RPM from, grey cast iron, white cast iron	168 RPM
RPM from, hard non-ferrous metals	419 RPM
RPM from, rust and acid-resistant steels	168 RPM
RPM from, soft non-ferrous metals	503 RPM
RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP)	251 RPM
RPM to, grey cast iron, white cast iron	419 RPM
RPM to, hard non-ferrous metals	838 RPM
RPM to, rust and acid-resistant steels	335 RPM
RPM to, soft non-ferrous metals	1006 RPM
RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP)	670 RPM
Version	INOX
Packaging unit	1 piece

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