Formula Hydraulic Oil 500ml Couplings Holemaker Carbide Burr 3 8 x Dvr Holemaker Carbide Burr 3 8 x 3 4in x1 4in Tree Radius End DC 500 Pieces Replacement Packs Available Part # Size Pack Qty C510 1 3 16 External Tooth 50 C510 2 1 4 External Tooth 50 C510 3 5 16 External Tooth 50 C510 4 3 8 External Tooth 50 C510 5 7 16 External Tooth 20 C510 6 1 2 External Tooth 15 C510 7 5 8 External Tooth 10 C510 8 3 16 Internal Tooth 50 C510 9 1 4 Internal Tooth 50 C510 10 5 16 Internal Tooth 60 C510 11 3 8 Internal Tooth 50 C510 12 7 16 Internal Tooth 20 C510 13 1 2 Internal Tooth 15 C510 14 5 8 Internal Tooth 10 They meet the stringent requirements of hydraulic systems using high pressure high output pumps as well as other hydraulic system components such as close clearance servo valves and numerically controlled (NC)machine tools