Details of tools for drilling machines

26 direct subcodes

Child Classifications

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B23B 2251/02 Connections between shanks and removable cutting heads
B23B 2251/04 Angles, e.g. cutting angles
B23B 2251/08 Side or plan views of cutting edges
B23B 2251/12 Cross sectional views of the cutting edges
B23B 2251/14 Configuration of the cutting part, i.e. the main cutting edges
B23B 2251/16 New cutting edge by fracture, wear, or recycling
B23B 2251/18 Configuration of the drill point
B23B 2251/20 Number of cutting edges
B23B 2251/24 Overall form of drilling tools
B23B 2251/28 Arrangement of teeth
B23B 2251/40 Flutes, i.e. chip conveying grooves
B23B 2251/44 Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
B23B 2251/46 Drills having a centre free from cutting edges or with recessed cutting edges
B23B 2251/48 Chip breakers
B23B 2251/50 Drilling tools comprising cutting inserts
B23B 2251/51 Drills with means for feeding cable
B23B 2251/52 Depth indicators
B23B 2251/56 Guiding pads
B23B 2251/58 Guiding rolls
B23B 2251/60 Drills with pilots