Knurling Wheel - 3/16″ Hole Dia., 1/2″ Knurl Dia., 3/16″ Width (20 TPI) - Series EP Taper Adaptors > Taper Adaptors Item #: HS1046486

Item #: HS1046486

4390 Thread Standard UNC Thread Fit Class 2B Fastener Standard MIL-S-7742 Military Specification Meets Military Specifications

Replacement for Brother TN221Y

Maximum Hole Depth (mm): 22

Item #: SF51080400

Knurling Wheel - 3/16″ Hole Dia., 1/2″ Knurl Dia., 3/16″ Width (20 TPI) - Series EP Taper Adaptors > Taper Adaptors Item #: HS1046486Item #: SE40EPS220 Brand: Generic USA Model #: SE40EPS220 Product Specifications Arbore Hole Diameter 3 16 Threads per Inch (TPI) 20 Outer Diameter 1 2 Angle 90 Degrees Material HSS Tool Type Knurling Wheel EP Pitch Straight PackSize 1 Style Circular Remarks Circular Pitch Knurls 30 Spiral Knurls 
EP SeriesCircular Pitch Knurls
The circular Pitch Knurl System is the older system and has been in use many years. The spacing of the teeth