CMT 813.701.11 Screw Slot Bit For Countersink Screws
Any large panel or table top should be secured in a waythat allows it to expand or contract without splitting. Thesescrew-slot bits let you create screw slots so that panels can be heldin place but are able to slide back and forth without splitting thewood or breaking the screw securing them. Both have 12mm (15/32") or12,7mm (1/2") shanks and the codes 913.201.11 and 813.701.11 are forcountersink screws, while the codes 913.101.11 and 813.601.11 are forcounterbored screws.