Masonry Drill Bits for Concrete, Brick and Stone – Professional Guide

Drill bit types by shank system

SDS-plus system allows quick tool changes and superior power transfer during hammer drilling. BOSCH and WOMAX offer extensive ranges of SDS bits with HM (hard metal) tips that remain sharp even after hundreds of holes in reinforced concrete. Traditional hex-shank bits work well with hand drills and cordless drivers when working on brick and porous concrete.

Core drills for large openings

Installing pipes, ventilation or electrical boxes requires core drills ranging from 68mm to over 115mm diameter. Diamond segments combined with a pilot bit ensure clean holes without edge chipping. The system requires a compatible core drill holder – typically M22 thread with a 300-400mm extension for penetrating thick walls.

HM carbide tips – the professional standard

Tungsten carbide tips withstand extreme temperatures and abrasion when drilling reinforced concrete. Quality bits feature spiral geometry that rapidly evacuates concrete dust and prevents overheating. ADAPTA TRIO and Tinn company produce bits with reinforced HM segments for the toughest conditions – drilling granite, marble and natural stone.

Choosing the right bit for your material

Solid brick requires a sharper attack angle than hollow concrete blocks. Concrete older than one year is significantly harder than fresh pour and demands bits with more robust HM tips. For reinforced concrete, select bits with four or more cutting edges – this prevents tool binding when hitting rebar.

Speed and pressure – common mistakes

Excessive pressure on the bit causes HM tip fracture and overheating. Professionals recommend letting the drill do the work – simply guide the tool straight without forcing it. When using core drills, working water pressure or periodic withdrawal for cooling is essential, otherwise diamond segments lose effectiveness after the first hole.

Brands and tool longevity

BOSCH Professional bits feature dual HM tips and spiral geometry optimized for dust removal – they last 200-300 holes in solid brick before replacement. Villager and ROTOZIP offer solid price-to-performance ratios for construction professionals. A quality 105-115mm core drill with diamond segments can cut through 30-50 holes in reinforced concrete when properly maintained and cooled during operation.

Selection and Pricing

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