Diteq Core Bit Adapter, 1-1/4in-7 Female Thread to 5/8-11 Male Thread
For convert 1-1/4″-7 core drill threads to 5/8″-11 threads male overall length: 4″ industrial grade adapter only, bit not included.
Allows the use of small diameter core bits on full sided 1-1/4″-7 drills
May be painted black
Not for use with hammer drills
Hollow to allow water flow