• KOB
KOB-260° Ball Nose End Mill
Commodity Brief
Recommended for 3D profiling, side-facing curves and radius finishing in aluminum alloys, copper and resin.
The 260° spherical cutting edge extends behind the ball's equator. Combined with a reduced neck, it suits profiles approached from the side; the tool has two flutes and an AlTiN coating.
⌀1–16 mm; 13 sizes.

    Product Introduction

    Carbon steelAlloy steelPre-hardened steelStainless steelAluminum alloyCopperResinGraphiteHard and brittle materialsHeat-resistant alloysWorkpiece Hardness
    50HRC55HRC62HRC
    ○○○○◎◎◎      
           Code No.
    KOB
    (R)
    Radius
    (D)
    Dia.
    (h)
    Length of Cut
    (h1)
    Effective Length
    (d2)
    Neck Dia.
    (Y)
    Shank Taper Angle
    (d)
    Shank Dia.
    (L)
    Overall Length
    40100.510.822.350.7612450
    40150.751.51.232.651.1512450
    4020121.6351.5312450
    40301.532.465.52.312450
    40351.753.52.957.52.5-450
    4040243.298.53.06-450
    6040243.298.53.0615650
    60502.554.19.53.8315650
    6060364.93104.6-650
    8080486.5812.56.15-860
    101005108.22167.66-1075
    121206129.86209.2-1275
    1616081613.372412.26-16100
    Description of icons
    1
    Helix Angle
    • 0°
    • 12°
    • 15°
    • 20°
    • 25°
    • 30°
    • 35°
    • 35°/38°
    • 37°
    • 40°
    • 40°/42°
    • 45°
    • 50°
    • Left 11°
    • Left 15°
    • Left 20°
    2
    Applications
    • Side milling
    • Slotting
    • 3D milling
    • Face milling
    • Plunging
    • Drilling
    • Thread milling
    • C chamfering
    • R chamfering
    • Back Chamfering
    • Deep Side Groove
    3
    Number of FluteFlute number of end mill
    • 1-flute
    • 2-flute
    • 3-flute
    • 4-flute
    • 6-flute
    • 8-flute
    • 10-flute
    4
    Possibility for material Hardness
    • Possible to cut up to 50HRC
    • Possible to cut up to 55HRC
    • Possible to cut up to 62HRC
    • Possible to cut up to 65HRC
    5
    Corner
    • Corner edge
    • Sharp edge
    6
    Material
    • MG
    • SMG
    • WC
    7
    Coating
    • AlTiN
    • nACo-Blue
    • DLC
    • TiSiN
    • TiAlN
    • ZrN
    • ta-C
    • AlTiCrN
    • Color Diamond