22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill 2531670 B-303 Conical Cutter 2 Deg

B-303 Conical Cutter 2 Deg Per Side

Combination Tap and Drills are a unique cost saving tool as two operations are combined into one

6 Piece Set

safety valve prevents overloading 5

22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill 2531670 B-303 Conical Cutter 2 DegUsed 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