Bulk packaged Please refer to list below for compatibility Compatible with the Following Models: Black and Decker: 2601 Electric Drill. more included: 1) DeWalt Replacement BALL BEARING# 330003-04 New. DeWalt OEM Replacement Ball Bearing# 330003-04 Genuine OEM Replacement Part# 330003-04 Compatible with DeWALT and Black and Decker Power Tools.