- {Specification} Core Drill Bit Adapter 1 1/4″-7 female thread to 5/8″-11 male thread
- {Application} Core drill bit adaptor are designed for using core drill bits with the 5/8″-11 female threaded.
- {Working method} Using core bits threaded at 5/8″-11 on a core drill machine threaded at 1-1/4″-7. Work both dry and wet with core drill.
- {Quality} Chemical black coating on the surface of core drill bit extension for rust protection. High quality steel, strong and long life.
- 【 Meet Your Needs 】 Use a 1 1/4 “-7 female thread to 5/8” -11 male thread adapter according to your actual needs, making it easier to use your device