Drill bit Bosch Expert CYL-9 MultiConstruction 5 mm x 85 mm for masonry and concrete

Bosch Expert CYL-9 MultiConstruction 5 mm x 85 mm drill bit is designed for reliable drilling in masonry, concrete and similar building materials. The 5 mm diameter and 85 mm overall length provide a controlled drilling depth and accurate holes for anchors, dowels and fastenings. The carbide-tipped head and optimized flute geometry make the bit suitable for use with both rotary and hammer drills, offering a balance of drilling speed and hole quality for professional and DIY applications.

Advantages

The carbide tip ensures wear resistance and prolonged service life when drilling abrasive surfaces. The CYL-9 geometry reduces breakouts and improves dust evacuation, delivering cleaner holes. Compatibility with rotary and hammer drilling modes allows versatile use across common construction tasks. The slim 5 mm diameter allows precise positioning of small anchors and fixings while the 85 mm length gives sufficient reach for typical installation depths.

Suitable for

• Drilling holes for anchors and dowels in concrete and masonry
• Installing fixtures, light fittings and shelving in block or brick walls
• General construction and renovation tasks requiring small-diameter holes

Key specifications

• Diameter: 5 mm
• Overall length: 85 mm
• Tip material: carbide-tipped design for hard building materials
• Intended materials: concrete, masonry and similar substrates
• Drill types: compatible with rotary and hammer drills

How to use

Mark the desired drilling point and secure the workpiece if possible. Select a suitable drill with an appropriate chuck that accepts the 5 mm shank and set the drill to hammer mode for concrete or masonry if available. Apply steady pressure and allow the bit to do the work; withdraw occasionally to clear dust and prevent overheating. After reaching the required depth, clean the hole before inserting anchors or fixings.

Recommendations

For best results, use the drill bit with a drill providing sufficient power and hammering action for concrete. Match drill speed and feed pressure to the material hardness: moderate speed and consistent pressure extend bit life. Replace the bit when signs of wear or chipping appear to maintain hole accuracy.