PFERD 20028 – HSS Twist Drill Bit, 118° Jobber Length, 29/64″ M2 Steel (5pk)

PFERD 20028 – HSS Twist Drill Jobber Length M2 29/64″ STEEL

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 HSSG (M2) drill bit for industrial use on STEEL. 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.

Designed for universal use on steel, cast steel, grey cast iron, annealed cast iron, bronze, brass, aluminum.

Easy centering.

Durable.

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

Applications

Drilling

Compatible Power Tools:

Column drill

Power drill

Robot

Stationary machines

Tool machine

Specifications:

Item Number	25204028
Angle	118°
Dia.	29/64 Inch
EDP number	20028
Flute length	4 11/64 Inch
Overall length	5 5/8 Inch
RPM from, grey cast iron, white cast iron	277 RPM
RPM from, hard non-ferrous metals	692 RPM
RPM from, soft non-ferrous metals	831 RPM
RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP)	415 RPM
RPM to, grey cast iron, white cast iron	692 RPM
RPM to, hard non-ferrous metals	1385 RPM
RPM to, soft non-ferrous metals	1662 RPM
RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP)	1108 RPM
Version	STEEL
Packaging unit	5 pieces

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