Forstner Bit Set, High-Speed Steel, 4-Pc. Brand_Bostwick Braun Nickel-chrome plated to resist rust

Nickel-chrome plated to resist rust and corrosion

solid brass adjustable collar

5 sizes will replace most all spring configurations on residential doors that are no higher than 7 ft

Fast dry professional

Forstner Bit Set, High-Speed Steel, 4-Pc. Brand_Bostwick Braun Nickel-chrome plated to resist rust4 piece, forstner, high speed steel bit set, sharp center spur accurately locates the center of your hole, use for drilling flat bottom holes, pocket holes or overlapping holes, set includes 1 each: 1" (cut diameter: 1", overall length: 3 1 2", shank diameter: 3 8"), 3 4" (cut diameter: 3 4", overall length: 3 1 2", shank diameter: 3 8", 1 2" cut diameter: 1 2", overall length: 3 1 2", shank diameter: 5 16" & 1 4" cut diameter: 1 4", overall length: 3