Product Description
3-7/8" Diameter x 7/16" Thick, Series 7, 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)