Milwaukee SHOCKWAVE 1/2 in. Square x 1/4 in. Hex Impact Adaptor 48-03-4410 - The Home Depot
U.S. Solid 2pcs Brass Pipe Fitting Adapter, Male Pipe x Female Pipe, 1/2" x 1/2", 1/2" x 3/4", 1/4"x 1/4", 1/4" x 3/8", 1/8" x 1/4", 1/8" x 1/8", 3/8" x 3/8" -
R1234YF Adapter 1/2" ACME Left Hand Female to 1/4" SAE Male #3110 | Enviro-Safe Refrigerants, Inc.
Hitch Adapter - 2" Adapter for 1-1/4" Hitches
Etra Oy - Bit-adapter 1/2"-1/4"
SharkBite 1/4-in OD Push-to-Connect x 1/2-in MIP Male Adapter in the Push to Connect Fittings department at Lowes.com