SUTTON TOOLS® D188-Series Reduced Shank Drill Bits are designed to increase the drilling capacity of drill chucks for slow speed (350 RPM or less), large scale boring.
Features

Reduced Shanks - Suits 13mm drill chucks
118° Standard Point - For general purpose applications
Made from M2 High Speed Steel (HSS) - Offering the best combination of strength, heat & wear resistance
Blue Surface Finish - For ferrous applications - The steam oxide finish prevents chip build-up on the cutting edges and reduces cutting friction, especially in low carbon steels

Specifications

Length (Overall): 152 mm (6")
Flute Length: 86 mm (3-3/8")
Reduced Shank Diameter: 12.5 mm
Point Angle: 118° Standard

Includes

D118-Series Reduced Shank Drill Bits (x8):

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

Plastic Storage Case