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Irwin HSS TCT Tip Drill Bit 3.5mm
by IRWIN®
£14.12from 4 retailers
The Irwin HSS TCT Tip Drill Bit 3.5mm is perfect for precision drilling in hardened steel and alloys. Ideal for professionals and DIY enthusiasts alike.
GTIN05709131042723
EAN5709131042723
MPNIRW10502626
Prices updated 1 Sept 2026
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Amazon
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Product Description
The 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 used when drilling with TCT twist drill bits. Irwin suggest the use of a 3- 6% emulsion. The coolant will extend the lifetime of the drill bit.Irwin HSS TCT tip drill bit. Specifications:Diameter: 3.5mm.Total length: 70mm.Working Length: 39mm.PTDIRW10502626
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