Taper pin hand reamer 1:50, uncoated, Nominal ⌀ DC: 20mm

Article no.: 161200 20
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  • Tool material: HSS
  • Standard: DIN 9
  • Taper ratio: 1:50
  • Through-coolant: no
  • Application for type of drilling: for through holes

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Product details

Technical Data

small ⌀ D3 19.8 mm
large ⌀ D2 24.8 mm
Nominal ⌀ DC 20 mm
Coating uncoated
Tool material HSS
Standard DIN 9
Taper ratio 1:50
Through-coolant no
Application for type of drilling for through holes
Flute length Lc 250 mm
Overall length L 310 mm
Shank square □ 18 mm
Colour ring without
Type of product Phillips bit

Identification & Classification

Article number 161200 20
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EAN / GTIN 4045197088994
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Manufacturer number 161200 20
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Manufacturer Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Aluminium (short chipping)
suitable for / [m/min]
N
ISO code:
Steel < 500 N/mm²
suitable for / [m/min]
P
ISO code:
Steel < 750 N/mm²
suitable for / [m/min]
P
ISO code:
Steel < 900 N/mm²
suitable for / [m/min]
P
ISO code:
Oil
suitable for / [m/min]
 
dry
suitable for / [m/min]
 

Description

Version:

Conically increasing cutting edges (1 mm over 50 mm length).
Size1.2 − 2.5 − straight flutes. Form A.
Size3 − 25 − helical flutes. Form B.

Application:

For reaming tapered holes by hand for taper pins to ISO 2339 (DIN 1), DIN 258, 1447, ISO 8736, 8737 (DIN 7977, 7978).

Recommendation:

The pre-drilled hole is best produced using a straight shank taper pin drill No. 116310.

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