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Jobber drill extra long HSS N 12R1 mm

Article no.: 116760 12R1

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⌀ DC h8 (mm) Unit price incl. VAT
  • Tool material: HSS
  • Standard: DIN 1870 R1
  • Type: N
  • Tolerance nominal ⌀: h8
  • Point angle: 118

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    Product details

    Technical Data

    Nominal ⌀ DC 12 mm
    Coating uncoated
    Tool material HSS
    Standard DIN 1870 R1
    Type N
    Tolerance nominal ⌀ h8
    Point angle 118 degrees
    Helix angle 16-30 degrees
    Shank Morse taper
    Number of cutting edges Z 2
    Through-coolant no
    recommended maximum drilling depth L2 187 mm
    Flute length Lc 205 mm
    Overall length L 310 mm
    Morse taper MT size 1
    Feed f in steel < 750 N/mm2 0.16 mm/rev.
    Colour ring without
    Type of product Jobber drill

    Identification numbers & Classifications

    Article number 116760 12R1
    EAN / GTIN 4045197035271
    Manufacturer number 116760 12R1

    Application Table

    Steel < 500 N/mm²
    P
    40
    Steel < 750 N/mm²
    P
    30
    Steel < 900 N/mm²
    P
    25
    GG(G)
    K
    25
    Oil
     
    wet maximum
     

    Description

    Version:

    High concentricity. Core thickness and core taper are standard.
    Special surface treatment.
    Precision ground point. When drilling deep holes, evacuate chips from the hole frequently, and ensure adequate cooling.
    Economy version with standard flutes.
    With point geometry shape A.

    Recommendation:

    Maximum drilling depth:
    L2 = LC - 1.5 × DC.

    Note:

    For suitable reducing adapters for tools with MT shanks see No. 343000-343530.

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