NPK PH4 - Standard Length for Npk Tools

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TOOLS
STANDARD LENGTH FOR NPK TOOLS
d23 = Length of tool from top to bottom.
d22 = Length of tool exposed from bottom of tool bushing to end of tool.
d16 = Diameter of bearing surface of tool.
HAMMER
MODEL
NEW TOOL
DIAMETER (d16)
NEW TOOL
LENGTH (d23)
NEW WORKING
LENGTH (d22)
in (mm) in (mm) in (mm)
PH1
2.24 (57) 23.6 (599) 14.1 (359)
PH2
2.60 (66) 25.5 (648) 15.1 (384)
PH3
2.99 (76) 28.5 (724) 16.5 (420)
PH4
3.39 (86) 33.0 (838) 18.5 (470)
NOTE:
Minimum tool length is determined by the depth of material penetration that is required.