35mm Diameter x 4.8mm Thick, Series 2, HSS (M4) Spade Drill Insert TiAlN 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)

2-3/8" Diameter x 5/16" Thick, Series 4, HSS (M4) Spade Drill Insert TiAlN 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)

35mm Diameter x 4.8mm 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)