IRWIN® HSS TCT Tip Drill Bit 4.5mm OL:80mm WL:47mm Security 3% Spandex 280gsm

3% Spandex 280gsm

Reflective patches for increased visibility

Dimensions meet the requirements of tooling standards NF ISO 1711-1 and aerospace standard SAE AS 954G

cracking and discolouring

IRWIN® HSS TCT Tip Drill Bit 4.5mm OL:80mm WL:47mm Security 3% Spandex 280gsmThe 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