DWDDL12X5/8X1/2 Size: 5/8" x 12" Features: -Drill bit.-Material: High speed steel.-Extra long.-Decimal equivalent: 5625, 6250, 6250 and 8750. Dimensions: -9/16" x 12" Drill bit flute length: 9".-5/8" x 12" Drill bit flute length: 9".-5/8" x 18" Drill bit flute length: 13".-7/8" x 18" Drill bit flute length: 13".-9/16" x 12" Drill bit overall length: 12".-5/8" x 12" Drill bit overall length: 12".-5/8" x 18" Drill bit overall length: 18".-7/8" x 18" Drill bit overall length: 18".-Product weight: 2.7 lbs.