The Simpson SDS-Max 2-Cutter Carbide Drill Bit 9/16 in. x 13 in. Multi-Flute Rotary Hammer Bit is a premium, professional-grade rotary hammer bit engineered by Simpson for demanding concrete and masonry drilling applications. Built on a chromium-nickel-molybdenum steel alloy body and tipped with uniformly brazed carbide inserts, this SDS-max shank bit features proprietary multi-flute geometry that optimizes impact energy transfer from the rotary hammer into the drill bit tip - enhancing drilling speed, reducing operator fatigue, and extending service life in reinforced concrete and similar high-stress materials.

Key Features

• Uniformly brazed carbide inserts - deliver consistent bonding strength across the cutting tip, resulting in longer bit life and fewer replacements on the job.
• Self-centering tips - guide the bit into precise position from the first contact, ensuring accurate hole placement and reducing the need for repositioning.
• Chromium-nickel-molybdenum steel alloy body - provides the hammering resilience and structural integrity needed for extended service life under continuous rotary hammer use.
• Heat-treatment procedures and shot-peened finish - increase surface hardness, boost drilling speed, reduce drill bit wear, and improve resistance to bending forces in tough materials.
• High-volume, multi-flute spiral - quickly channels concrete dust away from the hole, keeping the cutting tip clear and maintaining consistent drilling speed throughout the bore.
• 4 x 90 deg. head geometry - crushes through rebar and prevents the bit from sticking in reinforced concrete, keeping work moving without interruption.
• 2-cutter head design - penetrates material efficiently while directing concrete dust into the multi-flute spiral, combining cutting performance with effective debris evacuation.
• Conforms to ANSI Standard B212.15 - confirms the bit meets established industry tolerance requirements, giving contractors confidence in dimensional accuracy and fit.

Why This Product

• Engineered for reinforced concrete - the 4 x 90 deg. head geometry is specifically designed to crush through rebar and resist sticking, making this bit a dependable choice for structural drilling applications where rebar encounters are common.
• Reduced vibration and noise through proprietary flute design - the multi-flute spiral geometry is engineered to reduce vibration and noise on the operator while optimizing impact energy transfer, supporting safer and more comfortable extended use on demanding job sites.
• Built for durability from the material up - the combination of a chromium-nickel-molybdenum steel alloy body, uniformly brazed carbide inserts, and a heat-treated, shot-peened finish means this bit is constructed at every level to resist wear, bending forces, and premature failure.
• Precision and compliance in one tool - self-centering tips promote accurate hole placement from the start, and ANSI Standard B212.15 conformance ensures the bit meets verified industry standards - qualities that matter when dimensional accuracy is critical to anchoring and fastening applications.

Specifications

• Model Number: MDMX05613
• Shank Type: SDS-max Shank
• Head Type: 2-Cutter Head
• Diameter: 9/16 in.
• Length: 13 in.
• Drilling Depth: 7-1/2 in.
• Material: Hardened Steel
• Country of Origin: Germany

Frequently Asked Questions

What type of rotary hammer is this drill bit compatible with?

This drill bit features an SDS-max shank, which is compatible with all SDS-max rotary hammers. The SDS-max shank design ensures a secure fit and optimal impact energy transfer from the rotary hammer into the drill bit tip.

Can this drill bit be used in reinforced concrete with rebar?

Yes. The 4 x 90 deg. head geometry is specifically designed to crush through rebar and prevent the bit from sticking in reinforced concrete, making it well-suited for demanding drilling applications in reinforced structures.

What is the maximum drilling depth this bit can achieve?

This Simpson MDMX05613 drill bit has a drilling depth of 7-1/2 in. with an overall length of 13 in. and a diameter of 9/16 in.

What quality or compliance standards does this drill bit meet?

This drill bit conforms to ANSI Standard B212.15, ensuring it meets precise industry tolerance requirements. The chromium-nickel-molybdenum steel alloy body, uniformly brazed carbide inserts, and heat-treatment procedures with shot-peened finish reflect Simpson Strong-Tie's commitment to professional-grade quality and durability.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.