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 repeatable groove cutting on router tables and handheld routers alike Built in accuracy on every drive the Precision Placement nosepiece is purpose designed for steel decking operations 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