(10) Pack 7/16" x 2-1/16" LOF x 3-7/16" OAL Straight Flute Carbide Drill Bit Coating:ALTiN x 1-3/8" LOF x 2-1/2"

x 1-3/8" LOF  x 2-1/2" OAL

Number 40 -

45-60 Rc steels

Square End with 45° Lead Chamfer- Single End - Variable Helix

x 12mm LOC x 38mm OAL (3mm H6 Shanks)

(10) Pack 7/16" x 2-1/16" LOF x 3-7/16" OAL Straight Flute Carbide Drill Bit Coating:ALTiN x 1-3/8" LOF x 2-1/2"HTC straight flute drills are designed to produce short chips in most drilling applications. Good for drilling soft and ductile, non ferrous material, such as copper and aluminium. Point design prevents "digging in " or grabbing the material and maintains proper hole diameter and sidewall surface finish. Straight flute drills are for shallow and horizontal holes in cast iron, and non ferrous and hardened materials Self centering 140 degree 4 facet