MAZAK BT40 Pull Stud With Hole And Without Hole Pack of 1 Size:WITH HOLE BT40 Tool Holder accepts all

BT40 Tool Holder accepts all ER20 collets

and the 10T3 has a design on it—also

75 6G 1 3/8

75" Magnetic head is very useful in small tight space

there are many Chinese brand also making same inserts so you can just check description of size from other brands to fix this insert

MAZAK BT40 Pull Stud With Hole And Without Hole Pack of 1 Size:WITH HOLE BT40 Tool Holder accepts allMazak BT40 SK40 Pull stud used in CNC machines for BT40 holders. The ISO standard name is MAS403. Pull studs are an essential link between the machine and the tool. The requirements concerning accuracy, rigidity, and reliability are very high. Pull studs of low quality not only reduce machine performance but also pose a safety risk. A broken pull stud can cause severe damage to the machine and workpiece, and even injuries to personnel. Made of special