Black & Decker GC1800 / GC180WD 18V Drill Replacement Pin Style Charger, 90540242 Compatible only with 18V drills The plug on this charger is 3.8 MM round. If the hole for your drill is larger reference part# 90592362-02 Compatible with GC1800 Type 2, GC1800VA Type 2, and GC180WD Type 2. Works with 18V Black & Decker Drills. Genuine OEM Replacement Part