Rotary masonry drill bit Bosch EXPERT CYL-92608900619 7x90x150 mm

Bosch EXPERT CYL-92608900619 7x90x150 mm is a rotary masonry drill bit designed for use with hammer and rotary drills. It is intended for drilling precise 7 mm diameter holes with a 90 mm working length and a total length of 150 mm. The bit is made for drilling into concrete, brick and general masonry surfaces, providing consistent hole diameter and stable tip performance in typical construction and installation tasks.

Advantages

The drill bit features a robust carbide tip and a cylindrical shank that ensures reliable power transfer and reduced slippage in the drill chuck. Its dimensions deliver accurate hole depth control and repeatable results across multiple materials. The design balances drilling speed and tool life for routine building-site applications.

Suitable for

• Drilling anchor and dowel holes in concrete and masonry
• Installing electrical boxes and conduit through brick or block
• Preparing fixings for facade and interior fittings
• General renovation and installation tasks requiring 7 mm holes

Key specifications

• Drill type: rotary masonry (suitable for hammer and rotary drills)
• Diameter: 7 mm
• Working length: 90 mm
• Total length: 150 mm
• Shank type: cylindrical
• Tip material: carbide for masonry applications

How to use

Secure the drill bit in a compatible hammer or rotary drill chuck, ensuring the cylindrical shank is fully seated. For masonry and concrete, use the hammer function where available and apply steady, moderate pressure while keeping the drill perpendicular to the surface. Clear dust from the hole periodically to maintain cutting efficiency. For through-holes or precise depth requirements, mark the desired depth on the bit or use a depth stop.

Recommendations

Use personal protective equipment such as safety glasses, dust mask and hearing protection when drilling masonry. Match drill speed and hammer action to the material — higher hammer action for hard concrete, reduced force and slower progress for soft brick to avoid chipping. Replace the bit when cutting performance or accuracy decreases significantly.