22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill Product Type_Assortments Description: Stainless Steel

Description: Stainless Steel

Diameter: 9

It Crushes the blunt (glazed) surface and exposes a fresh layer of abrasives

General purpose drill

22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill Product Type_Assortments Description: Stainless SteelUsed for heavy duty drilling in work Hardening steel with a manganese content of 12 14 percent . 3 Morse taper Overall length 222mm Flute length 105mm Operating Conditions cutting speed between 3 4 meters per minute a feed of only 60 percent of standard drill Very rigid machine set up drilled without coolant Precautions drill must not touch work without feed being engaged no marking of work surface ie centre punch