Industrial grade heat treated steel drill adapters.
5/8"-11 male thread fits:
Wet core bits 1-1/2" diameter and below
Shank: 1/2"
Core Bit Thread: 5/8" - 11 Male
Weight: 0.35 pounds
1-1/4"-7 male thread fits:
Wet core bits 1-3/4" diameter and above
Shank: 1/2"
Core Bit Thread: 1 1/4" - 7 Male
Weight: 1.49 pounds
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