Specs

Cutting Diameter: 9/16''
Cutting Depth: 1''
Shank Diameter: 3/4''
Shank Style:Weldon Flat
Number of Flats: 2
Material:High Speed Steel（HSS）
Finish/Coating:Bright
Fits:Hole processing field such as engineering, rail transit, bridges, ships,machinery manufacturing, aerospace. Mild & Structural Steel; Aluminum;Stainless Steel (lower BHN)

Application

The cutter is used for drilling through steel. They produce accurate burr-free holes to close tolerances without pre-drilling or step drilling. They can drill a much larger hole and requires less force and time than a standard twist drill bit.

The annular Cutter offers superior holemaking capabilities. It cut faster, last longer, produces a better hole finish, a true round hole with very tight tolerances, can be re-sharpened and drills holes with less power and torque.

Requirement to cutting rotate speed of annular cutter are also different for different diameters,and reasonable cutting rotate speed will prolong service life of annular cutter directly,So we recommend:1.The cutting speed:VC=20-25m/min 2.The reasonable rotate feed amount shall be fn=0.08-0.13mm/r 3.The reasonable feed rate shall be vf=36-60mm/min

Notes

What Causes Dull or Broken Cutters?

The primary cause of broken or prematurely dull cutters is a feed rate that is too slow. Slow feed rates will reduce the life of your cutter. Using a firm, steady feed pressure throughout the cut will maximize performance and extend tool life.

Second reason why cutters break is movement of the drill or work piece. The cutter wall can easily be snapped if the drill and material is not held rigid.

Annular Cutter JESTUOUS 3/4 Inch Weldon Shank 9/16 Cutting Diameter 1 Cutting Depth with Two-Flat HSS Kit for Magnetic Drill Press,1 Piece

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