Reducing the size of a rod you want to thread with a die makes it easier to start the die, but the real secret is to add a 30° chamfer to the end of the rod.
Die Blank Size is the Major Diameter less 10% of the Pitch. This is about the same as common bolts.
7 Piece 1/4-5/8" Disc Cutter Set Set includes 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 & 5/8" disc sizes Punches are made of case-hardened tool steel The top and bottom plates are made of durable shock-resistant tool steel through hardened for long-w Round disc cutters let you cut perfectly round discs in up to 1mm (18 gauge) thick metal sheets
All the Features of the HiTorque 5100 (brushless motor, gearless spindle drive, extended bed, etc.) LED display with illuminated controls and integrated spindle speed readout 2-Axis Bluetooth DRO (w/tablet) on ways and cross feed, DRO readouts on tailstock and compound Aluminum hand wheels and chrome levers 0XA wedge-type quick change tool post and five tool holders
0-1" dial indicator with 0.001" resolution 0.375" Shank, #4-48 Tip Thread of Hardened Stainless AGD Group 2, 2" Diameter Face Magnetic Back is 2 1/4" in Diameter and Coated, Screws On/Off High Quality Dasqua Brand