135238 ⎘
Drill bits; Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
Hole opener
#2Spiral impact drilling machine applicable to rock and soil and construction method
#3Drilling device
#4Manufacturing process, tool stand, and drill bit
#5Drill bit
#6Drill bit
#7Manufacturing process, tool stand, and drill bit
#8Drilling tool
#9Drill Bit and Production Method
#10Down-the-hole drill hammer having a roller bearing assembly
#11Drill head insert or drill head attachment and drill
#12Twist drill and production method
#13DRILL AND PRODUCTION METHOD FOR A DRILL
#14Drill bit
#15Drill head for a drill and drill
#16Rock drilling tool for rotational percussive machining of concrete, rock, masonry and such materials
#17Rock drill bit
#18Rock drill
#19Drill head for rock drills
#20DRILLING TOOL, IN PARTICULAR SPIRAL DRILL
#21Hard material drilling head
#22Hard material insert for a drill and a drill with the hard material insert
#23Hard material head and rotary percussion drill bit
#24Rotary-percussion drill with a four-start helical shaft
#25Drill in particular masonry drill
#26Drill
#27Drill bit having radially extending cutting bits on radial legs