HSS flat countersink with guide pin DIN 373 dia. 20.0 mm shank dia. 12 mm medium for through hole

Technical information

Dia. ball bearing

13.5 mm

Dia. shank

12.5 mm

Diameter

20 mm

Length, total

100 mm

RPM, grey cast iron, white cast iron

150 - 150 RPM

RPM, hard non-ferrous metals

230 - 300 RPM

RPM, rust and acid-resistant steels

150 - 230 RPM

RPM, soft non-ferrous metals

230 - 300 RPM

RPM, steels over 700 N/mm²

150 - 230 RPM

RPM, steels up to 700 N/mm²

150 - 300 RPM

RPM, thermoplastics, fibre-reinforced plastics (GRP/CRP)

150 - 230 RPM

Version

M

Packaging unit

1 piece

Description

• High-performance flat countersinks made from HSS according to DIN 373 for countersinking cylinder head and hexagon screws as well as nuts. Flat countersinks have a cylindrical design. The cylindrical pin in the relevant quality grades of fine, medium or tapping hole ensures coaxial alignment of the countersink to the bore.
• High-performance countersink tools for through holes with the quality grade medium (M) according to ISO 273.

Special features

• Very high stock removal rate.
• Optimum chip removal.
• Burr-free results.
• Long tool life.
• Smooth operation.
• Good surface quality.

Recommendations for use

• Please observe the recommended rotational speeds.
• Flat countersinks with the quality grade "medium" are suitable for producing flat countersinks at through holes or blind holes in the tolerance range "medium" with extended mounting accuracy.

Product identifiers

Product number

25203113

Family SKU

178884

EAN

4007220169179