Amazon.com: uxcell 1/4 Inch Drive (F) x 1/2 Inch (M) Socket Adapter, Female to Male : Tools & Home Improvement
Milwaukee SHOCKWAVE 1/2 in. Square x 1/4 in. Hex Impact Adaptor 48-03-4410 - The Home Depot
Proline Series 1/4-in x 1/2-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com
Etra Oy - Bit-adapter 1/2''-1/4''
U.S. Solid 2pcs Brass Pipe Fitting Adapter, Male Pipe x Female Pipe, 1/2" x 1/
Yakamoz Quick Release 1/2-Inch Square Drive to 1/4-Inch Hex Female Socket Adapter Converter Chuck Adaptor for Impact and Ratchet Wrenches - Amazon.com
3/4" Male x 1/4" Female NPT Hex Bushing Adapter Pipe Reducer Brass Fit – compressor-source
DeWALT DW2547IR 1/4 in. Hex Shank to 1/2 in. Socket Adapter (Impact Ready) at Tractor Supply Co.
WoodRiver 2-1/4" to 1 1/2'' Adaptor - Vacuum And Dust Collector Accessories - Amazon.com
Amazon.com: Universal 2.25" ID 2.5" ID Exhaust Pipe Adapter Connector Reducer 304 Stainless Steel 2.25 Inch to 2.5 Inch 2 1/4” ID to 2 1/2” ID kit : Everything Else
Threading Adapter, NPT 1/2 Male to G 1/4 Female
Amazon.com: KOOTANS 1/2 NPT Male x 1/4 NPT Male Solid Brass Nipples, Heavy Brass Pipe Adapter Fittings Hex Reducing Nipples Connectors 4Pieces : Industrial & Scientific
Brass, 1/2 in x 1/4 in Fitting Pipe Size, Reducing Adapter - 46M452|706120-0804 - Grainger
Adapter 1/2" to 1/4" E6.3, 3-piece, impact-resistant (628837000) | Metabo Power Tools