Product Description
1-31/32" Diameter x 5/16" Thick, Series 4, HSS (M4) Spade Drill Insert Hardslick 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)