NEO TOOLS SDS Max Concrete Drill Bit 28 x 800 mm, Quatro 4-Cutter, Tungsten Carbide

Drilling large-diameter holes in concrete or reinforced concrete demands a bit that can handle extreme loads without wandering or wearing out prematurely. The NEO TOOLS SDS Max Quatro drill bit answers that challenge with a four-cutter tungsten carbide head that stays sharp and centered, even in tough aggregate. Its 28 mm diameter and 800 mm overall length make it a go-to choice for heavy-duty anchoring, through-holes, and installation work where precision and speed matter.

Who is it for

This bit is built for professional contractors, electricians, plumbers, and serious DIYers who use SDS Max rotary hammers. If you regularly drill into concrete, reinforced concrete, masonry, brick, or natural stone, the Quatro design will save you time and reduce bit replacement costs. It is especially useful for large-diameter holes where standard two-cutter bits struggle with centering and wear.

Main features

• Quatro 4-cutter carbide head with centering tip for accurate starts and reduced wandering
• Quadruple helix flute design for efficient dust removal and faster drilling
• High-grade alloy steel body with high wear resistance for long service life
• SDS Max shank for secure, tool-free bit changes in compatible rotary hammers
• Wear indicator helps track bit condition and plan replacements

Specifications

• Diameter: 28 mm
• Overall length: 800 mm
• Working length: 740 mm
• Shank type: SDS Max
• Number of cutting edges: 4
• Tip material: Tungsten carbide
• Body material: High-grade alloy steel (40Cr)
• Application: Concrete, reinforced concrete, masonry, brick, natural stone
• Drilling mode: Rotary hammer drilling
• Standard compliance: DIN ISO 5468

Tips

For best results, use a rotary hammer with sufficient impact energy for 28 mm bits and clear the hole periodically to prevent dust packing. Apply steady pressure but let the tool do the work—excessive force can overheat the carbide. The wear indicator will show when the bit is nearing the end of its service life; replace it promptly to maintain hole quality and avoid damage to your hammer.