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2090 Drill Bit Size (Wire) #4 Drill Point Angle 130 Drill Bit Material Cobalt Drill Bit Finish/Coating Oxide Flute Type Spiral Cutting Direction Right Hand Shank Type Straight Flute Length (mm) 28
50 Overall Length (mm) 250
Item #: 19225085
*Precision Ground
Knurling Wheel - 1/4″ Hole Dia., 5/8″ Knurl Dia., 1/4″ Width (25 TPI) - Series GK Knurling > Holders 2090 Drill Bit Size (Wire)Item #: SE40GKR225 Brand: Generic USA Model #: SE40GKR225 Product Specifications Arbore Hole Diameter 1 4 Threads per Inch (TPI) 25 Outer Diameter 5 8 Angle 90 Degrees Material HSS Tool Type Knurling Wheel GK Pitch Spiral PackSize 1 Style Right Hand Remarks Circular Pitch Knurls 30 Spiral Knurls 
GK Series Circular Pitch Knurls
The circular Pitch Knurl System is the older system and has been in use many years. The spacing of the teeth
