The Simpson 5/8 in. x 13 in. SDS-Max Quad-Head Carbide Drill Bit is engineered for professional-grade concrete drilling, delivering the speed, precision, and durability demanded by heavy-duty rotary hammer applications. Featuring a quad-head carbide tip and a high-volume multi-flute spiral design, this bit is purpose-built to power through reinforced concrete - including rebar - while reducing vibration and operator fatigue. The proprietary flute geometry optimizes impact energy transfer from the rotary hammer into the drill bit tip, making it a reliable choice for demanding structural and construction drilling tasks.

Key Features

• Uniformly Brazed Carbide Inserts - Consistent brazing quality across all carbide inserts means the cutting edge holds up longer, reducing replacement frequency and downtime on the job.
• Self-Centering Tips - Engineered to locate accurately on contact, these tips reduce bit walk and improve hole placement precision from the very first strike, saving time on layout-critical applications.
• Chromium-Nickel-Molybdenum Steel Alloy Body - This high-grade alloy construction delivers exceptional hammering quality and an extended service life, standing up to the repeated impact stress of heavy-duty rotary hammer use.
• Heat-Treatment and Shot-Peened Finish - Specialized heat-treatment procedures combined with a shot-peened surface finish increase surface hardness, accelerate drilling speed, reduce bit wear, and improve resistance to bending forces - keeping the bit performing accurately under load.
• ANSI Standard B212.15 Compliant - Conformance to this recognized industry standard ensures dimensional compatibility and verified quality, giving professionals confidence in consistent, spec-driven performance.
• High-Volume Multi-Flute Spiral - The multi-flute spiral rapidly channels concrete dust out of the hole during drilling, preventing clogging that would otherwise slow penetration rates and shorten bit life.
• 4 x 90 deg. Quad-Head Geometry - The four-point head configuration crushes through rebar and actively prevents the bit from sticking in reinforced concrete, keeping work moving without costly interruptions.
• High-Volume Double-Helix Design with Reinforced Core Flute - The patented, high-performance reinforced core flute maximizes energy transfer from hammer to tip, translating directly into faster material removal and greater drilling efficiency.

Why This Product

• Built to Handle Reinforced Concrete - The 4 x 90 deg. quad-head geometry is specifically designed to crush through rebar and resist sticking, making this bit a dependable choice for drilling into reinforced structural concrete where standard bits struggle or fail.
• Reduced Operator Fatigue Through Smarter Engineering - The proprietary flute geometry reduces vibration and noise transmitted to the operator while optimizing impact energy transfer, meaning longer drilling sessions with less physical strain on the user.
• Premium Materials for Long-Term Value - The combination of uniformly brazed carbide inserts, a chromium-nickel-molybdenum steel alloy body, and a heat-treated shot-peened finish produces a drill bit engineered for durability - reducing how often bits need to be replaced on active job sites.
• Precision From the First Strike - Self-centering tips eliminate the need for center-punching or repositioning, delivering accurate hole placement immediately and supporting consistent results across high-volume concrete drilling applications.

Specifications

• Manufacturer Part Number (MPN): MDMX06213Q
• Brand: Simpson Strong-Tie
• Shank Type: SDS-max
• Head Type: Quad Head (4x Drill Bit)
• Diameter: 5/8 in.
• Overall Length: 13 in.
• Drilling Depth: 7-1/2 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Steel Alloy Body with Carbide Tip)
• Standards Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Approved Applications

• Drilling into concrete, including reinforced concrete containing rebar
• High-speed, high-volume concrete drilling with SDS-max rotary hammers
• Applications requiring precise, self-centered hole placement
• Heavy-duty demolition and drilling tasks requiring extended bit durability
• Professional construction applications where ANSI B212.15 compliance is required

What's Included

• 1 x Simpson Strong-Tie MDMX06213Q 5/8 in. x 13 in. SDS-max Quad-Head Carbide Drill