Centering drill bit Bosch 2 608 900 647

The Bosch 2 608 900 647 centering drill bit set contains seven bits (4, 5, 6, 6, 8, 10, 12 mm) designed for accurate centring and stable starts when drilling in concrete and soft tile. These bits are intended for use with hammer and rotary drills where precise pilot holes and reduced walking are required.

Advantages

The set offers a range of common sizes in one package to avoid interruptions on the job. Each bit is made to hold a secure centre punch and reduce lateral movement at drill start, improving drilling precision. The design is suitable for repeated use in masonry and softer tile materials, supporting consistent performance and easier hole placement.

Suitable for

• Drilling starter holes in concrete
• Creating pilot holes in soft tiles
• Use with hammer and rotary drills for accurate positioning
• Professional and DIY projects requiring precise centring

Key specifications

• Brand: Bosch
• Manufacturer part number (MPN): 2 608 900 647
• EAN: 4059952539409
• Set contents: 7 pieces — 4 / 5 / 6 / 6 / 8 / 10 / 12 mm
• Intended materials: concrete and soft tile
• Category: Drill Bits

How to use

Select the bit size appropriate for the desired pilot hole and secure it in the drill chuck. Position the centring drill bit on the marked spot, apply steady pressure and start drilling at low speed to create a stable starter hole. For harder masonry, use hammer mode only if the bit and drill are rated for it; for soft tile, start slowly to prevent slipping and then increase speed as needed. Withdraw the bit periodically to clear dust and maintain accuracy.

Usage recommendations

Use appropriate personal protective equipment (safety glasses and gloves) and follow the drill manufacturer's guidelines. Replace bits that show wear or damage to maintain precise centring and safe operation.