Drill bit Bosch 2 608 831 035 spiral cutting drill bit Ø 1.2 cm, 1 pc

Bosch 2 608 831 035 is a spiral cutting drill bit with a 1.2 cm diameter designed for rotary hammers with SDS plus holders. Built for drilling in concrete and masonry, the bit features spiral flutes and a 4-flute dura design that improves dust removal and reduces heat build-up during operation. Constructed from high-alloy steel produced with an optimised hardening process and fitted with indented cutting edges made from a Bosch-controlled carbide blend, this single-piece drill bit aims to deliver stable drilling performance and extended service life for professional and DIY tasks.

Advantages

The 4-flute dura geometry promotes effective removal of drill dust, reducing friction and heat to increase endurance. High-alloy steel with optimised hardening provides improved wear resistance under repeated use. Carbide-blended indented cutting edges offer additional resistance at the cutting point, helping to maintain drilling accuracy and consistent hole quality. The SDS plus shank ensures secure fitting in compatible rotary hammers for reliable torque transfer and stable operation.

Suitable for

• Drilling holes in concrete for anchors and fixings
• Creating openings in masonry for installation work
• Professional building and renovation tasks requiring SDS plus rotary hammers
• DIY projects involving standard concrete and brick materials

Key specifications

• Drill bit diameter: 1.2 cm
• Length: 360 mm
• Shank type: SDS plus
• Design: Spiral cutting geometry with 4-flute dura dust evacuation
• Material: High-alloy steel with optimised hardening; indented carbide-blend cutting edges
• Intended materials: Concrete, masonry
• Quantity: 1 piece

How to use

Fit the Bosch 2 608 831 035 drill bit into a compatible rotary hammer with an SDS plus holder, ensuring the bit locks securely. Select the rotary hammer mode suitable for hammer drilling into concrete or masonry. Position the bit perpendicular to the work surface and apply steady, moderate pressure while allowing the tool and bit to do the cutting. Periodically withdraw the bit to clear accumulated dust and check progress. Use appropriate drill speeds and avoid excessive side loads to preserve bit life.

Usage recommendations

Use appropriate personal protective equipment, including safety glasses, hearing protection and dust mask. Match drill diameter to anchor or fixing size for correct fitting. For prolonged drilling sessions, allow brief pauses to reduce heat build-up and remove dust from the hole to maintain drilling performance.