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.

Usage 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.