40x152mm F/L x 298mm OAL 4MT T/S Armour Piercing Drill Set M16x90 ZP A vertical slot must be

A vertical slot must be cut first

drop forged from carbon steel raised panel design with polished heads

Used to ream holes to suit standard Imperial taper pins Flute length 114

therefore this part is finished with higher hardness to improve anti-wear

• Fits all 18mm Cutters

40x152mm F/L x 298mm OAL 4MT T/S Armour Piercing Drill Set M16x90 ZP A vertical slot must beUsed for heavy duty drilling in work Hardening steel with a manganese content of 12 14 percent . 4 Morse taper Overall length 298mm Flute length 152mm 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