1-27/32" Diameter x 1/4" Thick, 3 Series, SV-Point Premium Cobalt (M48) Spade Drill Insert H 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)

1-23/32" Diameter x 1/4" Thick, 3 Series, SV-Point Super Cobalt (T15) Spade Drill Insert H Coated

Sinusoidal thinning edge for smooth cutting Positive rake angleFor use in high nickel alloys materials over 280 Brinell Performs best in rigid setups Point Angle  - 132 degree, (Series 5-8 : 144 degree)