22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill 6405M47 1/4 x 3/4 x 30

1/4 x 3/4 x 30 Pieces Serrated Hex Flange Bolts & Nuts Zinc Plated

5/32" #21 Pilot Bonding Brush

Type : Square end (other than Cat

Shank diameter 1/2"

Overall width 125mm

22x105mm F/L x 222mm OAL 3MT T/S Armour Piercing Drill 6405M47 1/4 x 3/4 x 30Used 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