Simpson QDPROSDX150G2 Steel Decking Attachment for XM Medium Head and Self Drilling X Metal Screws Hurricane Ties for Masonry 2 Flute Configuration twin cutting 2 Flute Configuration twin cutting edges produce a balanced cut with reduced vibration reducing downtime from dulling or chipping The Simpson Quik Drive PROSDX150G2 Steel Decking Attachment is a multipurpose tool attachment from Simpson built to handle both nestable or interlocking steel decking and side lap stitching within a single unified system helping crews maintain placement accuracy that hand driving or generic attachments simply cannot replicate at speed