Item Type: Collet Chuck Holder_x000D_Model: MT2-GT12-110L_x000D_Material: High speed steel_x000D_Tool Handle Hardness: 58-60 degrees_x000D_Accuracy: 0.002mm to 0.008mm_x000D_Purpose: Anti-overload protection, stop tap breakage_x000D_Advantages: Anti-overload protection, the tap will automatically slip when reaching a certain torsion to prevent the tap from breaking; has the functions of floating, telescopic and quick-changing_x000D_Function: Used for clamping straight shank taps, used for tapping processing_x000D_Application: Used for tapping processing; widely used in CNC machining centers, drilling machines, lathes, CNC/milling machines, boring machines and tapping machine tools, etc._x000D_Tool Handle Length: Approx. 110mm / 4.3in_x000D_Size of Chuck: Approx. 20mm / 0.8in_x000D_Maximum Diameter of Tool Holder Taper: Approx. 19mm / 0.7in_x000D_Applicable Chuck: GT12GT12BTC312G3_x000D_Interface Location:_x000D_GT12 Size: Approx. 19mm / 0.7in 1Composed of a main body and a tapping socket. The main part has a front and rear pitch compensation device. The tapping clamp state has two types of overload protection and non?protection 2Come with overload protection, when the chuck is tapped, just adjust the nut to obtain different slipping torsions to prevent the tap from breaking, which is convenient and quick 3Tightly clamped with high stability, wear?resistant and durable 4The collet chuck holder is easy to install and remove, and the operation is simple 5Come with floating, telescopic and quick?change function, widely used in CNC machining centers, drilling machines, lathes, CNC/milling machines, boring machines and tapping machines, etc.1 x Collet Chuck Holder