IRWIN® HSS TCT Tip Drill Bit 3.5mm OL:70mm WL:39mm Tool Storage Ventilation opening at side seam

Ventilation opening at side seam

Using the lockable trigger and separate flow control

Elasticated hem with side adjusters

and fastening with zip and storm flap with press studs

IRWIN® HSS TCT Tip Drill Bit 3.5mm OL:70mm WL:39mm Tool Storage Ventilation opening at side seamThe Irwin Metric TCT (Tungsten Carbide Tipped) Drill Bits offer precision drilling with stationary machines in hardened steel, cast iron, bronze alloys and manganese alloyed steel. The C2 Carbide Tip will drill hardened material up to a hardness of 50 Rockwell C and is four facetted ground for low drilling pressure and perfect centring. The body of the drill bit is made from Chrome Vanadium Steel, hardened to 56 Rockwell C. A coolant should always be