Simpson Quik Drive QDPROLDHG2 Underlayment Backerboard Attachment for Cement Board and Fiber-Cement Stainless Steel Screws What is the concealed-flange design

What is the concealed-flange design and why does it matter

Match the sheathing clip size to the panel thickness

The CMT 552-008 is a 5/16" (8mm) Diamond Dry Hole Saw For Drill (Hexagonal Shank)

Dimensions: 17x11x9

The QUIVER belt pouch holds up to 500 screws when loaded with collated screw strips

Simpson Quik Drive QDPROLDHG2 Underlayment Backerboard Attachment for Cement Board and Fiber-Cement Stainless Steel Screws What is the concealed-flange designSimpson QDPROLDHG2 Quik Drive PROLDHG2 Underlayment Backerboard Attachment by Simpson Strong Tie is a professional grade auto feed screw driving attachment engineered for fastening cement board and fiber cement board underlayment backerboard to wood or steel. Backed by extensive research into fastener performance and real world installation workflows, this attachment delivers the efficiency and precision that demanding applications require, turning