Bordo 8 Piece HSS Imperial Reduced Shank Drill Set

Bordo 8 Piece HSS Imperial Reduced Shank Drill Set

• 118° notched point 30° helix
• 1/2" Reduced Shank

DRILL BIT SURFACE TREATMENT

• Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating.
• This surface aids chip flow and heat dissipation.
• The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.

Includes:

• 1 x 9/16"
• 1 x 5/8"
• 1 x 11/16"
• 1 x 3/4"
• 1 x 13/16"
• 1 x 7/8"
• 1 x 15/16"
• 1 x 1"