Hole saw having peripheral cutting capability

Abstract

A hole saw having peripheral cutting capability includes a saw cup, a shank portion, and a location drill. A plurality of cutting teeth are formed on a bottom (open end) of the saw cup and the shank portion is attached to a top of the saw cup with any suitable fastening process. An opening is formed through the shank to receive the location drill. Peripheral cutting teeth are formed on an outside circumference of the saw cup, at a top thereof. The peripheral cutting teeth may be hobbed, cast, or pressure formed into the saw cup. The peripheral cutting teeth may also be a separate structure that is fastened to the saw cup with any suitable attachment method. An abrasive cutting surface may also be formed on the saw cup.

I claim:  
     
         1 . A method of providing a hole saw with peripheral cutting capability, comprising the steps of: 
 providing a saw cup having a cutting surface formed on an open end thereof;    forming a peripheral cutting surface on a circumference of said saw cup;    forming a shank portion on a closed end of said saw cup; and    providing a location drill which is retained in said shank portion.    
     
     
         2 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 providing a plurality of peripheral cutting teeth for said peripheral cutting surface.    
     
     
         3 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 attaching a peripheral cutting ring to a circumference of said saw cup for said peripheral cutting surface, said peripheral cutting ring including a plurality of peripheral cutting teeth.    
     
     
         4 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 forming a peripheral abrasive cutting surface for said peripheral cutting surface.    
     
     
         5 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 forming at least one inward cutting tooth on an inside surface of said saw cup.    
     
     
         6 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 providing a plurality of cutting teeth for said cutting surface.    
     
     
         7 . The method of providing a hole saw with peripheral cutting capability of  claim 6 , further comprising the step of: 
 forming at least two of said cutting teeth inward toward a center of said saw cup.    
     
     
         8 . The method of providing a hole saw with peripheral cutting capability of  claim 1 , further comprising the step of: 
 relieving a portion of said location drill below a cutting diameter thereof.    
     
     
         9 . The method of providing efficient slug removal from a hole saw of  claim 1 , further comprising the step of: 
 retaining a bottom of a compression spring on a top of said saw cup.    
     
     
         10 . A method of providing a hole saw with peripheral cutting capability, comprising the steps of: 
 providing a saw cup having a plurality of cutting teeth formed on an open end thereof;    forming a plurality of peripheral cutting teeth on a circumference of said saw cup;    forming a shank portion on a closed end of said saw cup; and    providing a location drill which is retained in said shank portion.    
     
     
         11 . The method of providing a hole saw with peripheral cutting capability of  claim 10 , further comprising the step of: 
 attaching a peripheral cutting ring to a circumference of said saw cup for said plurality of peripheral cutting teeth, said peripheral cutting ring including a plurality of peripheral cutting teeth.    
     
     
         12 . The method of providing a hole saw with peripheral cutting capability of  claim 10 , further comprising the step of: 
 forming at least two of said cutting teeth inward toward a center of said saw cup.    
     
     
         13 . The method of providing a hole saw with peripheral cutting capability of  claim 10 , further comprising the step of: 
 forming at least one inward cutting tooth on an inside surface of said saw cup.    
     
     
         14 . A method of forming an opening larger than the diameter of a hole in an object, comprising the steps of: 
 providing a hole saw having a peripheral cutting surface formed on a circumference thereof;    attaching a guide plate to the object, said guide plate having a guide opening;    creating the opening in the object by removing at least one slug from said opening; and    moving said hole saw having a peripheral surface in a horizontal plane.    
     
     
         15 . A method of forming an opening larger than the diameter of a hole in an object of  claim 14 , comprising the steps of: 
 finishing the corners of the opening with a location drill of said hole saw having a peripheral cutting surface.    
     
     
         16 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 attaching a stop plate to a top of a saw cup of said hole saw having a peripheral cutting surface.    
     
     
         17 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 providing a plurality of peripheral cutting teeth for said peripheral cutting surface.    
     
     
         18 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 attaching a peripheral cutting ring to a circumference of said saw cup for said peripheral cutting surface, said peripheral cutting ring including a plurality of peripheral cutting teeth.    
     
     
         19 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 forming a peripheral abrasive cutting surface for said peripheral cutting surface.    
     
     
         20 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 forming at least one inward cutting tooth on an inside surface of said saw cup.    
     
     
         21 . The method of providing a hole saw with peripheral cutting capability of  claim 14 , further comprising the step of: 
 providing said hole saw with a saw cup, said saw cup having a plurality of cutting teeth formed on an open end thereof, forming at least two of said plurality of cutting teeth inward toward a center of said hole saw.