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Browse by Category: Main > Tools & Hardware
Class Information
Number: 408/230
Name: Cutting by use of rotating axially moving tool > Tool or tool with support > Having peripherally spaced cutting edges > With axially extending relief channel > Spiral channel
Description: Device wherein the void area is of axial dimension and of circumferential dimension so that it extends helically along the tool-axis.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8678722 Rotatable tool for chip removing machining as well as a loose top therefor Mar. 25, 2014
8668409 Twist drill and method for the production thereof Mar. 11, 2014
8628278 Drill Jan. 14, 2014
8622663 Drill bit for drilling holes in carboresin laminates Jan. 7, 2014
8579557 Drill Nov. 12, 2013
8550756 Drill bit for drilling having at least two cutting edges, each with two cutting portions and a non-cutting portion between the two cutting portions Oct. 8, 2013
8545140 Drill bit Oct. 1, 2013
8545141 Twist drill Oct. 1, 2013
8540463 Twist drill Sep. 24, 2013
8534966 Cutting tool having releasably mounted self-clamping cutting head Sep. 17, 2013
8449227 Rotatable tool for chip removing machining as well as a loose top and a basic body therefor May. 28, 2013
8444360 Self-drilling screw May. 21, 2013
8430608 Drill Apr. 30, 2013
8408850 Twist drill with negative axial rake transition between the lip and the secondary cutting edge Apr. 2, 2013
8403604 Rotatable multi-operation tool for chip removing machining, and a basic body therefor Mar. 26, 2013
8393831 Indexable drill and drill body Mar. 12, 2013
8382404 Drill Feb. 26, 2013
8371778 Cutting insert with helical geometry and holder therefor Feb. 12, 2013
8366358 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert Feb. 5, 2013
8360694 Rotatable multi-operation tool for chip removing machining, and a basic body therefor Jan. 29, 2013
8342781 Drill body Jan. 1, 2013
8328473 Drill and method of producing printed circuit board Dec. 11, 2012
8317438 Twist drill having at least two cutting inserts at the tip each with its own J-shaped chip guiding flute and a method for the production thereof Nov. 27, 2012
8308402 Drill body for chip removing machining Nov. 13, 2012
8292555 Drill bit configuration Oct. 23, 2012
8272816 Composite cemented carbide rotary cutting tools and rotary cutting tool blanks Sep. 25, 2012
8257000 Drill Sep. 4, 2012
8215882 Helical multilevel cutting tool Jul. 10, 2012
8206067 Ceramic drill bit for high-speed drilling of composites Jun. 26, 2012
8142116 Tool for rotary cutting machining Mar. 27, 2012
8132989 Drill Mar. 13, 2012
8109700 Replaceable tip for a bit or auger bit Feb. 7, 2012
8105001 Drilling tool Jan. 31, 2012
8092126 Indexable drill Jan. 10, 2012
8070399 Drill point for one-shot drilling of sandwich panels and similar Dec. 6, 2011
8061938 Cutting tool with chisel edge Nov. 22, 2011
8057135 Auger bit with interlocking feed screw and cutting insert Nov. 15, 2011
8052361 Drill bit for drilling holes in carboresin laminates Nov. 8, 2011
8025200 Friction stir welding machine and friction stir welding tool Sep. 27, 2011
7997836 Indexable type cutting tool Aug. 16, 2011
7988389 Twist drill Aug. 2, 2011
7950880 Spiral flute tap May. 31, 2011
7950881 Cutting insert with helical geometry and holder therefor May. 31, 2011
7909547 Replaceable tip for a bit or auger bit Mar. 22, 2011
7909549 Small-diameter deep hole drill and a micro deep hole drilling method Mar. 22, 2011
7891444 Drill bit Feb. 22, 2011
7871224 Drill bit and reamer Jan. 18, 2011
7837418 Twist drill Nov. 23, 2010
7832966 Drill for making flat bottom hole Nov. 16, 2010
7814905 Systems devices and methods for opening receptacles having a powder to be fluidized Oct. 19, 2010

1 2 3 4 5 6 7 8 9










 
 
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