KM Waffen-Amt Marked Die Taps?

[jwburchell]

Does anybody recognize what these might be? I was told they are die taps, but am not sure.

On one side they both bear the KM "eagle-over-M" mark with what appears to be a small letter "L" to the right; and on that same side one also has "WM" (for Wehrmacht, perhaps?), plus numerals 4010 and 4101.

On the opposite sides they both have the markings "C/13" under which is a letter "P" and below that the letters "MP" within a circle.

Can anybody please tell me what these are and for what purpose were they used?

Thanks,
John

[jwburchell]

Opposite side markings:

[amydron]

Yes these are die taps, for cutting threads in holes drilled into metal to accept bolts.
Regards,
RAY.

[jwburchell]

Thanks for the confirmation, Ray. Since these are KM-WA-marked, are you aware of these being used for any special or specific purpose - other than what you described?
Regards,
John

[amydron]

John,
I presume that there were standard tap and die sets for use by the kriegsmarine - I imagine that originally these must have been supplied in a complete range of sizes in boxed sets together with handles and any related tools. In fact very similar to sets you can get from specialist tool suppliers today. Basic engineering and maintenance equipment with a wide range of uses - machine shops, general engineering and engine maintenace etc. You would need to show these to an engineer in order to find out exactly what size and pitch of thread these taps actually cut.
Regards, RAY.