Brand
Long Twist Drill - 1000mm Long - HSS - Nitrided
Guhring Series 244 - Ultra Long Twist Drills for Extremely Deep Holes
HSS
Web Thinning
Wide Flutes
Surface: Uncoated
For Grey Cast Iron, Steels up to 1000N/mm2 and Aluminium
Not recommended for CrNi Steels or Stainless Steels