25x108mm F/L x 225mm OAL 3MT T/S Armour Piercing Drill 6851460 Vernier caliper

Vernier caliper

2m of 25mm polypropylene discharge hose

(Closely resembles the "India Stone")

high sensitivity repeatability and accuracy

Flute Length: 170mm

25x108mm F/L x 225mm OAL 3MT T/S Armour Piercing Drill 6851460 Vernier caliperUsed for heavy duty drilling in work Hardening steel with a manganese content of 12 14 percent . 3 Morse taper Overall length 225mm Flute length 108mm 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