Bosch HSS-G Metal Twist Drill Bit 3.5 x 70 mm 2 pieces

The 2-piece Bosch HSS-G Twist Drill Bit, 3.5 x 70 mm (2-pack), contains ground high-speed steel bits designed for metalwork. The fluted twist geometry clears chips from the cutting area as the bit works. The bits are suited to tough materials such as alloyed steel, cast iron, and non-ferrous metals, and they will also bore clean holes through hard plastics. Intended for workshop professionals and DIY users, the set produces consistent, accurate holes.

Each bit measures 3.5 mm in diameter with an overall length of 70 mm. A cylindrical shank matches the cutting diameter, so the bits fit standard rotary drill chucks. The 135-degree point angle and twin cutting edges let the bit centre itself on contact with the workpiece, removing the need for centre punching. Together, the two bits weigh 12 g.

• Ground high-speed steel (HSS-G) construction holds its cutting edge through repeated metalworking tasks.
• 39 mm working length sets the maximum continuous boring depth per pass.
• 135-degree point angle grips smooth metal on contact, preventing wandering.
• Twin cutting edges slice cleanly through alloyed steel, cast iron, and hard plastics.
• 3.5 mm cylindrical shanks fit standard rotary drill chucks without adapters.