Freud 12mm Brad Point Boring Bit Left Hand 10mm Shank BP12757L Deck Drive DHPD Hardwood Deck Screw this round nose bit this round nose bit also commonly called a core box bit delivers clean Heavy Gauge Build for Critical Connections The combination of a 3 gauge top flange and a 7 gauge stirrup reflects a design prioritized for structural applications where load transfer at the purlin to joist connection is a critical engineering concern Freud Limited Lifetime Guarantee reflects confidence in the bit's construction and gives buyers assurance of long term performance value The Freud 12 mm Brad Point Bit is an industrial grade carbide tipped boring bit engineered for precision drilling in multi spindle machine environments