GRAPHITE SDS Max Concrete Drill Bit, 28 x 800 mm, S4, Quatro

For professionals who refuse to compromise on speed and precision in demanding masonry, the GRAPHITE SDS Max Concrete Drill Bit 28 x 800 mm S4 Quatro stands apart with its four-cutter geometry. Unlike standard two-cutter bits that wander and wear unevenly, this quad-cutter design centres instantly and cuts a perfectly round hole with minimal vibration, even in heavily reinforced concrete.

Highlights

• Quad-cutter carbide tip with centring point for fast, accurate starts
• Optimised quad-flute helix for rapid dust removal and reduced clogging
• Reinforced core and high-grade alloy steel body resist bending under high torque
• SDS-MAX shank for secure fit and efficient power transfer in heavy rotary hammers
• Working length of 740 mm reaches deep into thick walls and foundations

In daily use

Contractors will notice the difference immediately: the bit bites into concrete without skating, and the four cutting edges share the load, extending service life. The wide flutes evacuate debris quickly, keeping the tip cool and the hole clean. Whether anchoring structural steel, installing heavy pipework, or drilling through tough aggregate, this bit delivers consistent, round holes with less effort and fewer bit changes.

Full specifications

• Shank type: SDS-MAX
• Drill bit type: Concrete / Masonry Drill Bit
• Diameter: 28 mm
• Overall length: 800 mm
• Working length: 740 mm
• Number of cutting edges: 4 (Quad-Cutter)
• Tip material: Tungsten Carbide
• Body material: High-grade Alloy Steel
• Flute design: Quad-Flute Helix
• Application: Concrete, Reinforced Concrete, Brick, Stone, Masonry

Final note

Built for heavy-duty rotary hammers, this drill bit delivers professional results in the toughest materials, hole after hole.