RS PRO 19-Piece Titanium Nitride Twist Drill Bit Set for Metal, 1 mm Min to 10 mm Max 216-678

RS PRO 216-678 19-Piece Titanium Nitride Twist Drill Bit Set is a premium quality drill bit set designed specifically for metal drilling applications. The set features twist drill bits manufactured from High-Speed Steel with 5% cobalt alloy (HSS-E), which significantly increases heat resistance, allowing for high-speed drilling even without sufficient coolant. The Titanium Nitride coating further enhances wear resistance and durability, extending the service life of the bits.

The drill bits have a minimum diameter of 1 mm and a maximum of 10 mm, available in 0.5 mm increments, accommodating a wide range of drilling requirements. The bits feature a 135° non-slip split point design that ensures precise and accurate centering on metal surfaces and allows direct drilling without the need for prior centering or pilot holes. Manufactured in accordance with the DIN 338 standard, these bits offer high precision tolerances and geometric accuracy.

This drill bit set is especially suited for use on high tensile strength metals up to 800N/m², including stainless steel, carbon steels, cast iron, titanium alloys, and carbon fibre composite materials. The HSS-E cobalt alloy composition allows these bits to cut faster and last longer than standard HSS drill bits, making them ideal for demanding industrial, laboratory, construction, and manufacturing environments.

The set is manufactured in China and contains 19 pieces of HSS drill bits coated with Titanium Nitride. This combination of cobalt alloy and coating optimizes performance under high temperature and heavy-duty conditions without sacrificing precision.

Includes 19 high-performance twist drill bits made of HSS-E cobalt alloy with 5% cobalt content. Bits feature Titanium Nitride coating for enhanced wear resistance and extended life. Suitable for drilling stainless steel, carbon steels, cast iron, titanium alloys, and other high tensile metals.

135° non-slip split point design ensures precise centering and direct drilling without pilot holes. Conforms to DIN 338 standard for precision and geometric accuracy. Drill bits come in 0.5 mm increments between 1 mm and 10 mm sizes.

Set designed to withstand high temperature applications without requiring sufficient coolant. Ideal for industrial, manufacturing, construction, and metal fabrication use cases. Manufactured in China, ensuring consistent quality and reliability.

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