Drill Chucks Konnwei

Compatibility: This adapter can seamlessly convert 1-1Celsius4in-7 female thread to 16mm male thread, expanding the functionality of your coring drill and making it compatible with a variety of concrete coring drill bits. Improve Efficiency: This drill bit adapter can improve the accuracy and efficiency of drilling , which is a must have tool, convenient and practical. Stable Connection: The drill adapter ensures a secure and stable connection, allowing you to confidently perform drilling tasks. Item Type: Drill Bit Adapter Material: Carbon Steel Thread Specification: 1-1Celsius4in-7 Female Thread to 16mm Male Thread