American Sun USA Made 1-1/4" CAT 50 Taper End Mill Holder C50E1250 John James #2 drill has a 3/16″

#2 drill has a 3/16″ shank

American Sun Inc USA-made B40ER32 BT40 HOLDER ER32 COLLET Chuck

This industrial quality chuck

accurate spacing of milling cutters

Caliper-type jaws permit quick inside measurements

American Sun USA Made 1-1/4" CAT 50 Taper End Mill Holder C50E1250 John James #2 drill has a 3/16″American Sun 1 1 4" CAT 50 End Mill Holder C50E1250. Manufactured in the US (a small American firm that made the highest quality tooling). This top of the line tool is for all CNC or standard milling machines, manufactured of high quality alloy materials, heat treated to 60RC and preceision ground for accuracy. You won't find better! Comes new in the box and still covered in packing grease as shown in the pics. .