HSS flat countersink, DIN 373 thread core hole

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

Item number:: 25203120
EAN:: 4007220169308

HSS flat countersink with guide pin DIN 373 dia. 20.0 mm shank dia. 12 mm for tapping hole 2

HSS flat countersink with guide pin DIN 373 dia. 20.0 mm shank dia. 12 mm for tapping hole 3

HSS flat countersink with guide pin DIN 373 dia. 20.0 mm shank dia. 12 mm for tapping hole 4

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

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Technical information

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

Dia. ball bearing: 10.2 mm
Dia. shank: 12.5 mm
Diameter: 20 mm
Length, total: 3.15 /16 Inch
Length, total: 100 mm
RPM from, grey cast iron, white cast iron: 150 RPM
RPM from, hard non-ferrous metals: 230 RPM
RPM from, rust and acid-resistant steels: 150 RPM
RPM from, soft non-ferrous metals: 230 RPM
RPM from, steels over 700 N/mm²: 150 RPM
RPM from, steels up to 700 N/mm²: 150 RPM
RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP): 150 RPM
RPM to, grey cast iron, white cast iron: 150 RPM
RPM to, hard non-ferrous metals: 300 RPM
RPM to, rust and acid-resistant steels: 230 RPM
RPM to, soft non-ferrous metals: 300 RPM
RPM to, steels over 700 N/mm²: 230 RPM
RPM to, steels up to 700 N/mm²: 300 RPM
RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP): 230 RPM
Version: GKL
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 with guide pins for the tapping hole (GKL).

Advantages

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 for the tapping hole are suitable for producing flat countersinks at core holes for female threads.

Materials that can be worked: Aluminium; Annealed cast iron; Black annealed cast iron (GTS, GJMB); Brass; Bronze; Case-hardened steels; Cast iron; Chipboard; Copper; 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; 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: Countersinking

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

Downloads

HSS flat countersink, DIN 373 thread core hole

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

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