Kobalt 3/8-in 3/8-in x 1/4-in Hex Bit Adapter in the Drive Tool & Socket Accessories department at Lowes.com
Makita P-05963 Bit Adapter 3/8 Inch 4-Point 1/4 Inch Hexagonal - Amazon.com
Tite-Reach Adapter - 3/8" Bit Adapter
Wera - Socket Adapter: Square-Drive to Hex Bit, 3/8 & 5/16″ - 01135243 - MSC Industrial Supply
1/4 Hex to 3/8 Square Quick-Change Impact Bit Adapter - Kimball Midwest
3pcs 1/4'' Hex Shank To Square Head Socket Bit Adapter 50mm 1/4'' 3/8'' 1/2'' For Heavy Duty Impact Drivers Quick Change Chuck - AliExpress
Ball Retainer Type Bit Adapter 3/8 X 50Mm | Agri Supply
42024 - 3/8" Drill Bit Adapter - Make it Snappy Tools
Hazet 2250-3 Adapter 3/8” - 8mm (5/16") bits
TEKTON 3/8 Inch Drive x 1/4 Inch Hex Bit Holder | SHA15102 - Amazon.com
BOEN Impact Grade Socket Adapter Set, 3-PCS Drill Bit Adapter with Bit — CHIMIYA
Gedore 1973312 630 Bit adaptor 1/4"-3/8"
Wera Tools 344512 3/8" Square to 5/16" Hex Adaptor (Extra Strong)
Allen 58143 1/5/16" Bit Adapter 3/8" Drive USA
Felo 1/4" & 3/8" Drive 2" Power Bit Socket Adapter Set Impact Hex Quick Change - Bowers Tool Co.
Wera 784 A 1/4" and 3/8" Drive Bit Adaptors with Quick-Release Chuck
BSRTTOOl 2Pcs Core Drill Bit Arbor Adapter 3/8" Round Shank to 5/8"-11 Threaded for Backing Pad and Electric Drill, Core Drill Bit Adapter - Amazon.com