63/64" Diameter x 3/16" Thick, Series 2, Carbide C3 (K10) Spade Drill Insert TiN Coated

Cast Iron GenometryIncrease wear resistance over M4 and T15high performance in Gray cast iron over 220 Brinell, malleable cast iron with short chips, silicon aluminum and coppor alloysPoint Angle  - 132 degree

63/64" Diameter x 3/16" Thick, Series 2, Carbide C5 (P40) Spade Drill Insert TiN Coated

Multipurpose GenometryIncrease wear resistance over M4 and T15For general use in carbon steel and alloy steelsPoint Angle  - 132 degree

63/64" Diameter x 3/16" Thick, Series 2, Carbide C2 (K20) Spade Drill Insert TiN Coated

Multipurpose GenometryIncrease wear resistance over M4 and T15For general use in Gray cast iron, aluminum and non-ferrousPoint Angle  - 132 degree2pcs/package

63/64" Diameter x 3/16" Thick, Series 2, Premium Cobalt (M48) Spade Drill Insert TiN Coated

Increased tool life over T15 For use in high temperature alloys and materials including medium carbon, Alloy and tool steels Rigid set up needed Point Angle  - 132 degree

63/64" Diameter x 3/16" Thick, Series 2, Super Cobalt (T15) Spade Drill Insert TiN Coated

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

63/64" Diameter x 3/16" Thick, Series 2, HSS (M4) Spade Drill Insert TiN Coated

General purpose insert for most materials Not recommended for tool steels and high temperature alloys High toughness for loose or manual machines Point Angle  - 132 degree, (Series 5-8 : 144 degree)