1-13/16" Diameter x 1/4" Thick, 3 Series, SV-Point Carbide C5 (P40) Spade Drill Insert Hardslick Coated

Sinusoidal thinning edge for smooth cuttingPositive rake angleFor general use in carbon steel and steel alloys Performs best in rigid setups Point Angle  - 132 degree

1-5/8" Diameter x 1/4" Thick, 3 Series, SV-Point Premium Cobalt (M48) Spade Drill Insert Hardslick Coated

Sinusoidal thinning edge for smooth cuttingPositive rake angleFor use in high temperature alloys and materials over 350-500 Brinell Performs best in rigid setups Point Angle  - 132 degree, (Series 5-8 : 144 degree)

1-3/32" Diameter x 3/16" Thick, Series 2, Super Cobalt (T15) Spade Drill Insert Hardslick Coated

Increase wear resistance over M4 For use in medium carbon steel to high temperature alloys Performs best in rigid setups Point Angle  - 132 degree, (Series 5-8 : 144 degree)