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The Irwin HSTIN Titanium Drill Set is especially suitable for drilling metal and harder alloys, with cutting speeds up to 40-60% faster than HSS drill bits.
The 15-piece Irwin HSTIN Titanium Drill Set is mainly designed for cutting metal and hard alloys. Each drill bit has a Titanium Nitride (TiN) coating that enables faster drilling speeds without overheating, and a 135° split point design is especially suitable for cutting into metal with less pressure than a general-purpose 118° angle point shape.
With industrial-quality ground flutes, the drill bits of the Irwin HSTIN Titanium Drill Set are extremely accurate, and ultra-efficient at expelling drill chips. The same TiN coating that prevents the bits from overheating also makes them resistant to wear, by creating an incredible hardness of 80 HRC.
These Irwin titanium drill bits can be used with 40-60% greater drilling speed and 10-20% increased feed over an HSS drill bit with no discernible disadvantage in lifespan.
The following diameters of drill bit are included in the 15-piece Irwin HSTIN Titanium Drill Set: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 9mm, and 10mm.