THIS IS A PARLEC C50-02EM2 END MILL HOLDER MANUFACTURED BY PARLEC. IT FEATURES A TAPER SHANK WITH A CAT50 TAPER SIZE. THE HOLDER HAS A 1/4 INCH HOLE DIAMETER, A 7/8 INCH NOSE DIAMETER, AND A PROJECTION OF 2.5000 DECIMAL INCHES. IT IS DESIGNED WITH COOLANT THROUGH CAPABILITY, SPECIFICALLY THROUGH-SPINDLE COOLANT TYPE, AND OFFERS A CLAMPING DEPTH OF 3.0000 DECIMAL INCHES. THE TOOL FEATURES A HIGH TIR (TOTAL INDICATED RUNOUT) OF 0.0002 DECIMAL INCHES AND INCLUDES A RETENTION KNOB THREAD SIZE OF 1-8.