Drill bit GRAPHITE SDS+ for concrete 8 mm (57H414)

GRAPHITE SDS+ drill bit for concrete, 8 mm diameter (model 57H414) is a rotary-hammer accessory engineered for drilling precise holes in concrete, masonry and similar construction materials. The bit features an SDS+ shank compatible with SDS+ rotary hammers and percussion drills, enabling fast bit changes and secure retention. Its 8 mm cutting diameter is suitable for installing anchors, dowels and for electrical and plumbing pass-throughs where a consistent hole size is required.

Advantages

The SDS+ shank design ensures reliable coupling with SDS+ hammer drills and reduces wobble during drilling. The 8 mm diameter offers a balance between material removal rate and hole control for common construction tasks. The drill bit is intended for impact drilling in concrete and masonry, providing a durable cutting profile for repeated use in standard building applications.

Suitable for

• Drilling anchor and dowel holes in concrete and blockwork
• Creating pass-throughs for electrical conduits and plumbing
• General-purpose impact drilling in masonry and similar materials

Key specifications

• Shank type: SDS+
• Cutting diameter: 8 mm
• Intended material: concrete, masonry
• Usage mode: rotary hammer / percussion drilling

How to use

Fit the SDS+ shank into the compatible rotary hammer chuck until it locks. Select an appropriate drilling speed and impact setting for concrete or masonry according to the tool manufacturer's guidance. Position the bit at the marked point and start drilling with steady pressure, allowing the hammer action to do the work. Withdraw the bit periodically to clear dust from the hole when drilling deep or multiple holes.

Usage recommendations

Use appropriate personal protective equipment such as safety goggles, hearing protection and dust mask. Match drill diameter to the anchor or dowel specifications and follow the anchor manufacturer's instructions for hole depth and cleaning. Avoid side loading the bit to prevent chipping of the cutting edges and inspect the bit regularly for wear; replace when cutting performance degrades.