39290 ⎘
Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
Sub-classes:MANUFACTURING METHOD OF A DRILL
#2Drill steel and its manufacture
#3Methods of forming forged fixed-cutter earth-boring drill bit bodies
#4Method of forming a journal for a roller cone drill bit
#5Methods of forming forged fixed-cutter earth-boring drill bit bodies
#6Drill Rod
#7Soil auger and method of manufacture
#8Fatigue-resistant Nitinol instrument
#9Process for making forged and machined components
#10Method and pair of pinching jaws for producing a drilling tip
#11Fatigue-resistant Nitinol instrument
#12METHOD AND DEVICE FOR PRODUCING LONGITUDINAL COMPONENTS OF METAL WITH HELICAL GROOVES, IN PARTICULAR SPIRAL DRILL BITS OR SCREWS
#13Hollow drill and a production process for the same
#14Process for making upsets for oilfield drill pipe
#15Drilling tool for machine tools and method for the production thereof