GRK Fasteners R4 01101 Framing Screw, #9 Thread, 2-1/2 in L, Star Drive, Steel, Climatek, 575 PK Festool 577932 Guide Rail FS FS 1400/2-KP-Set The perfect addition: Thanks to

The perfect addition: Thanks to the Li-HighPower cell technology

Temperature Rating: -4 to 113 deg F

Time display (hour and minute)

IP65-rated

2 in Dia Outside

GRK Fasteners R4 01101 Framing Screw, #9 Thread, 2-1/2 in L, Star Drive, Steel, Climatek, 575 PK Festool 577932 Guide Rail FS FS 1400/2-KP-Set The perfect addition: Thanks toGRK's R4 self countersinking screw has a patented underhead with saw blade like cutting teeth and six self contained cutting pockets. Together they act similar to a circular saw blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. This design enhances the R4's versatility by allowing the fastener to countersink into even