GRK GRK-57778 - CALIBURN™ XL CONCRETE SCREW 19/64" X 3-1/2" -25bx Demo Demon Fastest crimp time in the

Fastest crimp time in the industry PFM 2

Optimized tooth design for clean

Steel handle covered with anti-slip TPE

hard case design

Swing over tool rest base: 7-1/2"

GRK GRK-57778 - CALIBURN™ XL CONCRETE SCREW 19/64" X 3-1/2" -25bx Demo Demon Fastest crimp time in theHeavy Duty Concrete and Masonry Fastener Cailburn Concrete screws are professionally engineered fasteners with a patented thread design for ease of driving the screw into concrete and similar applications. Caliburn Concrete Screws are professionally engineered fasteners with a patented thread design for ease of driving the screw in concrete and similar applications. Available in three different head styles for multiple applications. Caliburn, Caliburn