Drill bit STANLEY STA58011 – 5.5 mm x 85 mm, single-piece

Single drill bit STANLEY STA58011 – 5.5 mm x 85 mm, single-piece is a precision masonry drill bit designed for creating clean 5.5 mm holes in common construction and DIY materials. It is a single-piece item with an overall length of 85 mm and a nominal cutting diameter of 5.5 mm, intended for use in compatible hand drills and rotary hammer drills where masonry drilling is required.

Advantages

The single-piece design ensures consistent concentricity and improved durability during repetitive drilling. Its 5.5 mm diameter provides accurate, repeatable hole sizing for fixings and anchors. The 85 mm overall length gives sufficient reach for most standard wall and block drilling tasks while maintaining rigidity to reduce wobble. Designed for masonry use, the flute geometry and tip shape help evacuate dust and debris efficiently to maintain drilling speed.

Suitable for

• Drilling holes in concrete, brick and masonry for anchors and plugs
• Preparation of fixing points for light to medium loads
• DIY renovations and small construction projects requiring 5.5 mm holes
• Precision drilling where a consistent 5.5 mm bore is needed

Key specifications

• Diameter: 5.5 mm
• Overall length: 85 mm
• Intended material: masonry (concrete, brick, block)
• Design: single-piece construction
• Pack quantity: 1 piece

How to use

Secure the drill bit in the chuck of a compatible rotary hammer or hammer drill rated for masonry bits. Mark the drilling point and start at low speed to create a guide indent, then increase speed and apply steady pressure appropriate for the substrate. Periodically withdraw the bit to clear accumulated dust and prevent clogging. For through-holes or deeper holes, drill in stages and clear debris between passes. After drilling, clean the hole from dust before inserting anchors or plugs.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, hearing protection and a dust mask when drilling masonry. Match drill speed and impact settings to the material and tool capability. Avoid excessive lateral force to preserve bit life and maintain hole accuracy.