AES Industries 1/8" Double-Ended High Speed Steel Stubby Drill Bits (12 Bits): Amazon.com: Tools & Home Improvement
Drill sleeve, double-ended, for 3.2mm and 4.5mm diameter drill bits, tap for 4.5mm diameter cortical screws and 4.5mm diameter malleolar shaft screws | Ambler Surgical
Century Drill & Tool 3/16 in. Body Drill Bit, Double Ended 3/16 in. Overall Length, 2-1/4 in. Bulk at Tractor Supply Co.
Double Ended Drill Bit 1/8" HSS Cobalt 24-pk - TopLine USA