Features 1、Good Workmanship: This boring head shank is well made, with a neat and sleek polished surface, good appearance and comfortable grip. 2、Excellent High Carbon Steel Material: This boring head shank is made of excellent high carbon steel material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 3、Wide Application: This boring head shank has a wide range of applications and can be used for machining bore surfaces, boring end faces, cutting holes and more. 4、Efficient Work: This boring head shank allows for quick and easy setup and tear down, saving you time when switching between applications. 5、High Accuracy: This boring head shank allows for 0.005mm accuracy, with a 60 degree angle, and a thread of 1 1/2 18 UNF. Specification Item Type: Boring Head Shank Material: High Carbon Steel Thread: 1-1/2-18UNF Accuracy: ≤0.005mm Type: Milling Tool Package List 1 x Boring Head Shank 1 x Storage Box