Replacement drill chuck key for some 5/8" capacity chucks. Equivalent to # 0SH0, 2136ABD109, 561708-CK, TDC-625.

• For 5/8" / 16mm capacity chuck w/ 8mm key pilot hole
• Key has shrouded teeth (closed at rear)
• Ideally fitted to chucks that measure 11mm from bottom of chuck teeth to bottom of pilot hole - measure yours BEFORE you buy!
• There is a similar key with open teeth for chucks that are 12mm from bottom of chuck teeth to bottom of pilot hole (# CK-16, no longer available)