HSS Twist Drill 21/64" M2 STEEL

Technical information

HSS Twist Drill 21/64" M2 STEEL

Angle: 118 °
Diameter: 21/64 Inch
Diameter: 8.33 mm
EDP no.: 20020
Flute length: 3-1/3 Inch
Flute length: 84 mm
Overall length: 4-3/5 Inch
Overall length: 117 mm
PFERD type: SPB M2 21/64" STEEL
RPM from, grey cast iron, white cast iron: 390 RPM
RPM from, hard non-ferrous metals: 960 RPM
RPM from, soft non-ferrous metals: 1160 RPM
RPM from, steels over 220 HV (95 HB): 770 RPM
RPM from, steels up to 220 HV (95 HB): 960 RPM
RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP): 580 RPM
RPM to, grey cast iron, white cast iron: 960 RPM
RPM to, hard non-ferrous metals: 1920 RPM
RPM to, soft non-ferrous metals: 2310 RPM
RPM to, steels over 220 HV (95 HB): 960 RPM
RPM to, steels up to 220 HV (95 HB): 1343 RPM
RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP): 1540 RPM
Spiral angle, from: 25 °
Spiral angle, to: 30 °
Version: STEEL
Packaging unit: 10 pieces

Description

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.).

Safety notes

Wear eye protection!
Follow the safety instructions!

Materials that can be worked: Aluminum; 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; 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 non-ferrous metal; Hardwood; Other; Other non-ferrous metals; Plastics; Roller-bearing and ball-bearing steels; Soft non-ferrous metal; Soft titanium alloys (tensile strength 500 N/mm²); Soft wood; Steel; Steel, cast steel; Steels over 220 HV (> 95 HB); Steels up to 220 HV (< 95 HB); Steels up to 370 HV (< 38 HRC); Thermoplastics; Thermosetting plastics; Titanium; Titanium alloys; Tool steels; White annealed cast iron (GTW, GJMW); Wood; Zinc

Applications: Drilling

Drive types: Column drill; Power drill; Robot; Stationary machines; Tool machine

Downloads

HSS twist drill bits, HSSG

HSS Twist Drill 21/64" M2 STEEL

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