THE SHARS 250-301 QUICK CHANGE TOOL POST HOLDER IS A CXA 1 TYPE DESIGNED FOR LATHES WITH A SWING RANGE OF 13 TO 18 INCHES. IT ACCOMMODATES TOOL CAPACITIES RANGING FROM 1/2 INCH TO 3/4 INCH. THE HOLDER FEATURES A WEDGE MEASURING 2-1/8 INCHES, WITH OVERALL DIMENSIONS OF 3-1/4 INCHES IN LENGTH, 1-3/8 INCHES IN WIDTH, AND 2-1/8 INCHES IN HEIGHT, EXCLUDING THE MIDDLE SCREW. INCLUDED WITH THE TOOL POST HOLDER IS A SANDVIK 151.2-12-21M TOOL BLOCK, WHICH HAS A SHANK WIDTH AND HEIGHT OF 0.75 INCHES, AN OVERALL LENGTH OF 3.1496 INCHES, A FUNCTIONAL WIDTH OF 1.2618 INCHES, A FUNCTIONAL HEIGHT OF 0.75 INCHES, AN OVERALL HEIGHT OF 1.7902 INCHES, AND AN OVERALL WIDTH OF 1.4587 INCHES. ADDITIONALLY, THE PACKAGE INCLUDES A SECO 150.10-20-3 BLADE WITH AN OVERALL LENGTH OF 4.724 INCHES, AN OVERALL WIDTH OF 0.094 INCHES, A NEUTRAL HAND OF CUT, A FUNCTIONAL HEIGHT OF 0.843 INCHES, AND A CUTTING WIDTH OF 0.118 INCHES.