Drill bit for rock drilling

Details Drill bit for rock drilling Drill bit for rock drilling

E - Fixed Constructions

21

B

77/30, 255/83

E21B 10/00 (2006.01) B23B 51/04 (2006.01) E21B 10/04 (2006.01) E21B 10/44 (2006.01)

Patent

CA 1094049

A B S T R A C T A drill bit for rotary impact drilling of reinforced concrete comprises a shank having brazed to one end thereof a cutter ring. An ejection passage for removing drilling ? has a first section extending axially through the cutter ring and shank end, and a second section opening to the helical outlet grooves on the surface of the shank. The second section can be in the form of a slot of a radial bore through the shank. In one arrangement the second section is formed by two opposed radial bores at an acute angle to the drill axis which meet in a chisel edge within the shank. This chisel edge serves to fi?gment the standing core which remains within the cutter ring.

322556

Affiliated with

Also associated with

Rating

Drill bit for rock drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill bit for rock drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill bit for rock drilling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-343351