8 convolute screwing taps by Johann Georg Bodmer

Made:
circa 1840

8 convolute screwing taps by Johann Georg Bodmer, c 1840.

Details

Category:
Hand and Machine Tools
Object Number:
1857-7
type:
screwing taps
credit:
Bodmer, R.

Parts

Convolute screwing taps

Convolute screwing taps

4 convolute screwing taps size 1 1/2" 6 t.p.i. for cutting screw threads in four progressive stages.

Object Number:
1857-7/1
type:
screwing taps
Convolute screwing taps

Convolute screwing taps

4 convolute screwing taps size t.p.i. for cutting screw threads in four progressive stages.

Object Number:
1857-7/2
type:
screwing taps