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4390 Thread Standard UNC Thread Fit Class 2B Fastener Standard MIL-S-7742 Military Specification Meets Military Specifications
1 *Weight: 115 lbs
Maximum Hole Depth (mm): 22
*High Speed 3 Jaw Wedge Style *Open Center Design *Replaces Kitigawa B-212
Product Specifications Style Equal Double Threaded System of Measurement Inch Thread Size 5/8-11 Overall Length (Inch) 20 Material Carbon Steel Equal-Style Thread Length (Inch) 1-3/4 Flat With Flats Material Specification Grade 5
Knurling Wheel - 3/16″ Hole Dia., 1/2″ Knurl Dia., 3/16″ Width (20 TPI) - Series EP Taper Adaptors > Taper Adaptors 4390 Thread Standard UNC ThreadItem #: 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
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