CAT40 end mill tool holder CAT40  side lock tool holder 1/8 ,3/16,1/4,3/8,1/2,5/8,3/4,1",1-1/4",1-1/2 " available Gage length from 1.75" to 6" side lock screw has  1 or 2  , it depends on one how big the hole and what gage length all hole and taper by CNC grinding machine, taper has three times grinding The end

Promotion CAT40 ER Collet Chuck Tool Holder Stock in USA High Precision ER Collet Chuck tool Hoder High-Performance G2.5 25000rpm High precision  TIR: 0.005mm/0.0002" Silver coated never rusty ever   CAT40 ER40 ,ER32,ER25,ER20 ER16 and ER11 Gage length 0.5" to 6" available   NO  Type CAT Tool Holder 1 ER ColletChuck CAT40 5/8-11 CAT40 ER16