PDC oil bit

Bit Diameters: 5 7/8",6",6 1/2",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4", etc.
Body Type: Matrix or Steel
Cutter Sizes:5/16"(8mm),1/2"(13mm),5/8"(16mm),3/4"(19mm),etc.
Blades:2~9 Wings.