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Class Information
Number: 408/224
Name: Cutting by use of rotating axially moving tool > Tool or tool with support > Having stepped cutting edges > Axially spaced
Description: Device wherein said cutting edges are separated one from the other, when viewed as an elevation normal to the tool-axis.










Sub-classes under this class:

Class Number Class Name Patents
408/225 With central lead 143


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8651778 Drill Feb. 18, 2014
8646547 Chisel ice drill Feb. 11, 2014
8622666 Adjustable step drill bit Jan. 7, 2014
8579556 Insert for drill, drill and method of cutting work material Nov. 12, 2013
8540463 Twist drill Sep. 24, 2013
8517644 Adjustable indexable drill and modular system and holder Aug. 27, 2013
8511946 Stabilization of boring tools Aug. 20, 2013
8506212 Adjustable indexable drill Aug. 13, 2013
8480337 Drill with cutting inserts Jul. 9, 2013
8480338 Adjustable indexable drill Jul. 9, 2013
8403604 Rotatable multi-operation tool for chip removing machining, and a basic body therefor Mar. 26, 2013
8388280 Step drill bit Mar. 5, 2013
8360694 Rotatable multi-operation tool for chip removing machining, and a basic body therefor Jan. 29, 2013
8317439 Cutting tool Nov. 27, 2012
8192114 Combination of center drill and drill holding tool Jun. 5, 2012
8157489 Tool for chip removing machining and a cutting insert therefor Apr. 17, 2012
8142115 Twist drill for drilling with a countersink cutting arrangement, and a cutting tool with a countersink cutting arrangement, and a cutting-chamfering tool Mar. 27, 2012
8122978 Drilling device with undercutting Feb. 28, 2012
8113749 Auger bit including a reamer Feb. 14, 2012
8070399 Drill point for one-shot drilling of sandwich panels and similar Dec. 6, 2011
8029215 Spiral drill bit and method of forming same Oct. 4, 2011
8025466 Removable countersink bit Sep. 27, 2011
7980794 Ring with cutting edge (ring-shaped chamfer tool) Jul. 19, 2011
7950880 Spiral flute tap May. 31, 2011
7942616 Drilling tool and method for producing port seals May. 17, 2011
7942615 Multi-cartridge cutting tool and railway wheel boring assembly May. 17, 2011
7927047 Multi-cartridge cutting tool Apr. 19, 2011
7841812 Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor Nov. 30, 2010
7832966 Drill for making flat bottom hole Nov. 16, 2010
7717651 Tool for machining precision bores May. 18, 2010
7682111 Bore cutter Mar. 23, 2010
7632050 Drilling tool and method for producing port seals Dec. 15, 2009
7575401 PCD drill for composite materials Aug. 18, 2009
7559765 Rotary tool for dental or medical applications Jul. 14, 2009
7451534 Valve seat and valve guide machining tool Nov. 18, 2008
7445411 Rotary cutting tool Nov. 4, 2008
7384223 Anchoring drill bit, system and method of anchoring Jun. 10, 2008
7363692 Tool and method for fine machining work pieces Apr. 29, 2008
7360975 Multi-functional tube milling head Apr. 22, 2008
7305746 System for removing heat transfer fins from, and beveling the ends of, boiler tubes Dec. 11, 2007
7273334 Deburring cutter for deburring edges of drilled holes Sep. 25, 2007
7261498 Deburring tool and cutting insert therefor Aug. 28, 2007
7244081 Drill adapter for drill having central and lateral cutting inserts Jul. 17, 2007
7226250 Tool and method for forming a lug hole Jun. 5, 2007
7217070 Deburring tool and cutting insert therefor May. 15, 2007
7214009 Drilling tool May. 8, 2007
7207752 Reamer and method for reaming Apr. 24, 2007
7204664 Glass drill bit Apr. 17, 2007
7201542 Solid drill bit for machine tools Apr. 10, 2007
7201544 Deep hole boring drill Apr. 10, 2007

1 2 3 4 5 6










 
 
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