Open figure viewer
Evidence of careful thought in the design of adjustable spanners and wrenches is welcome. The adjustable spanner that slips round the nut and causes barked knuckles docs so for a number of reasons; Humphris & Sons Ltd. have investigated these reasons and have produced a new range of adjustables which they claim have none of these faults.
This content is only available via PDF.
© MCB UP Limited
1949
You do not currently have access to this content.
