ZM Scalpel PD-20ZM Scalpel PD 20 The ZM Scalpel is a versatile tool that can be used for SD and DD eye removal, removal of resin flashing, removal of plastic seamlines, doll modification, kit building, etc. It's blade is not as sharp as a craft knife, but is still sharp enough to score and cut many materials. *Please use caution when using this tool. The pointed tip is quite sharp and can injure you and damage your dolls if proper care is not used.