Harvey Tool 946009-C3 Thread Milling Cutter, UN Thread, 2-1/2 in OAL, (4) Flutes, 1/4 in Dia Shank
                                HARVEY 946009-C3
                                                            
                        
                                    
                                        $119.07
                                    
                                    
                                        / EA
                                    
                        
                            
                                Out of Stock
                            
                    - Shank Diameter: 1/4 in
 - Overall Length: 2.5 in
 - Corner Radius: 0.01 in
 - Diameter: 0.245 in
 - Finish/Coating: C3
 - Length of Cut: 0.072 in
 - Overall Length - Fractional: 2-1/2 in
 - Shank Diameter - Fractional: 1/4 in
 - Shank Diameter - Decimal: 0.25 in
 - Number of Flutes: 4
 
- Designed to relieve stress concentrations at the corners of undercuts, and at the bottom of the last thread, to prevent fracture and failure.
 - Typically used before a threading operation to avoid damaging the thread form.
 - Chamfer eliminates burrs and partial threads at last thread.
 - Flattens bottom of hole to achieve maximum thread depth.