17 1/2 inch drill bit, used on off-shore oil platforms by Richter Drilling Pty Ltd
Datebefore 1988
Object number00003500
NameDrill bit
MediumMetal
DimensionsOverall: 560 x 470 x 470 mm, 193.5 kg
ClassificationsTools and equipment
Credit LineANMM Collection Gift from Richter Drilling Pty Ltd
before 1964
1890s - 1950s
1890s - 1950s
1890s - 1950s
1890s - 1950s