DESCRIPTION: "CNC Tooling" Brands---The Best Quality on The Market---Sold Many Thousands to Distributors to put on famous label.
*This set including:
4 PCS BT40 - ER20 collet chucks with
gage length: 2.75"----4 pcs;
DRAW BAR THREADS: M16X2
PRODUCED ACCORDING TO AT3 SPECIFICATIONS.