SDS+ drill bit Makita NEMESIS2 B-58154 — 8 mm diameter, 465 mm length

SDS+ drill bit Makita NEMESIS2 B-58154 is an 8 mm diameter, 465 mm overall length concrete and masonry drill designed for use with SDS+ rotary hammers. The long-shank design provides extended reach for deep holes in concrete, brick and similar materials while the SDS+ shank ensures secure fit in compatible chucks. The bit is intended for drilling with combined rotation and hammer action at appropriate power settings to maintain drilling efficiency and tool life.

Advantages

The long 465 mm length allows access to deep or hard-to-reach drilling points without extensions. Precision-ground flute geometry facilitates efficient dust removal and sustained drilling speed in masonry and concrete. The SDS+ shank design enables fast tool changes and a secure connection in SDS+ rotary hammers. The bit is balanced for straight drilling and manufactured to tolerances suited to professional and DIY workloads.

Suitable for

• Drilling deep anchor holes in concrete and reinforced concrete
• Creating openings for through-cabling or pipes in masonry walls
• Installation of fasteners, anchors and wall plugs at depth
• General renovation and construction tasks requiring extended reach

Key specifications

• Diameter: 8 mm
• Overall length: 465 mm
• Shank type: SDS+
• Material suitability: concrete, masonry and similar mineral materials
• Recommended drilling mode: rotary hammer (combined rotation and impact)

How to use

Install the bit into the SDS+ chuck of a compatible rotary hammer until it locks. Select the rotary-hammer mode on the tool and set an appropriate power level for the material and drill diameter. Position the bit perpendicular to the work surface, start drilling with light pressure to establish the pilot path, then apply steady pressure while allowing the hammer action to advance the hole. Periodically withdraw the bit to clear dust and cool the bit if drilling long holes. Secure the work area and use suitable anchors or fasteners sized for the 8 mm diameter hole.

Usage recommendations

Use personal protective equipment including eye and ear protection and a dust mask when drilling concrete or masonry. For reinforced concrete, reduce feed force when encountering rebar and consider pre-drilling or using a specialist bit for steel. Avoid excessive side load to prevent bit breakage and keep the tool well-supported to maintain hole straightness.