When faced with skirting boards or scotia to finish off a floor installation heavy duty nails sometimes leave a nasty mark in the wood or MDF. The pins used with the Spot Stapler ME30 are a narrow 18 gauge hardened steel and with the ability of the ME30 to countersink the brads only a tiny mark remains. From 15mm up to 30mm the brad range for the ME30 is able to carry out most applications that are required on site.