Keeney® 674K Repair Coupling with Nuts & Washers, 1-1/2" x 1-1/2", Chrome 4thJuly Capacity in Wood (Auger Bit):

Capacity in Wood (Auger Bit): 1-1/2"

Wire range #8 to 2 cual ground connection

Clam shell

The round face makes for easy nail driving and the blade will score drywall

But if you're using an older can

Keeney® 674K Repair Coupling with Nuts & Washers, 1-1/2" x 1-1/2", Chrome 4thJuly Capacity in Wood (Auger Bit):Ideally suited for hot and cold water pressure distribution systems in residential and commercial applications. Use to change the direction of water supply tubing by 90 degree. 1 1 2" x 1 1 2" 22 Gauge Chrome Plated Use to change the direction of water supply tubing by 90 degree Bagged. WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproduction