Review on 🛠️ HHIP 3900 5079 ER 40 Collet Chuck Drawbar: High-Performance Tool for Precision Machining by David Dortch

Just a warning, product description is different from what was sent to me when I ordered. The hitch description above is for 3/8"16 threads per inch (which my factory uses). The chuck I received requires a 1/2" 13 tpi drawbar. I can't tell you how it works until I fix the drawbar issue. However, it fits my ER-40 collets perfectly!