Bosch HSS-TiN Metal Twist Drill Bit Set (13 pieces), 1.5–6.5 mm

The Bosch HSS-TiN Metal Drill Bit Set (13-piece), 1.5–6.5 mm, is a titanium-coated high-speed-steel twist drill bit collection designed for metalworking. The titanium nitride (TiN) coating over the core reduces friction and helps control heat build-up during drilling. This surface treatment supports consistent cutting performance over extended use, particularly when drilling into structural or sheet steel. The set is rated for metal substrates and standard workshop fabrication, making it suitable for hardware installation, component fastening, and routine maintenance tasks.

The set is designed for use with conventional handheld power drills and standard drill/drivers. The bits are made to handle the rotational stress typical of these portable tools when working on solid material. All components are housed in a rigid carrying case that keeps them securely in place. Moulded slots inside the case stop the flutes from knocking against each other in transit, protecting the cutting geometry from damage. Proper storage keeps the cutting edges in good condition between jobs.

• Operating range from 1.5 mm to 6.5 mm covers standard hole preparation for metal fabrication.
• Specific intermediate diameters of 3.2 mm and 4.8 mm accommodate common blind-rivet sizes.
• 135° point angle improves initial centring and reduces bit wandering on smooth surfaces.
• Straight shank design ensures direct clamping compatibility with standard keyed and keyless drill chucks.
• 280 g overall package weight adds minimal bulk to portable tool bags and on-site equipment boxes.