Specifications include, but are not limited to: : 20-Piece, CT40 Toolholder Kit, TSC: - 04-0003 CT40 1" End Mill Holder x 1-3/4" Gage Length, TSC ✕ 2 - 04-0004 CT40 3/4" End Mill Holder x 1-3/4" Gage Length, TSC ✕ 3 - 04-0006 CT40 ER16 Collet Chuck x 2-1/2" Gage Length, TSC ✕ 2 - 04-0007 CT40 ER16 Collet Chuck x 4" Gage Length, TSC - 04-0009 CT40 ER25 Collet Chuck x 4" Gage Length, TSC ✕ 2 - 04-0010 CT40 ER32 Collet Chuck x 2-1/2" Gage Length, TSC ✕ 4 - 04-0011 CT40 ER32 Collet Chuck x 4" Gage Length, TSC ✕ 2 - 04-0013 CT40 Shell Mill Holder, 1" Pilot Diameter x 2" Gage Length, TSC ✕ 2 - 04-0015 CT40 Shell Mill Holder, 3/4" Pilot Diameter x 2" Gage Length, TSC ✕ 2 - 04-0201 Haas CT40 Pull Stud/Retention Knob, TSC - Pack of 10 ✕ 2