Design, fabrication, assembly and calibration of drilling dynamometer : mechanical type; & testing of high helix angle and low helix angle drills. /
Arora, Ashok Kumar
Design, fabrication, assembly and calibration of drilling dynamometer : mechanical type; & testing of high helix angle and low helix angle drills. / Arora, Ashok Kumar
621.952 A1D
Design, fabrication, assembly and calibration of drilling dynamometer : mechanical type; & testing of high helix angle and low helix angle drills. / Arora, Ashok Kumar
621.952 A1D