The Simpson 1 in. x 13 in. SDS-Max Quad-Head Carbide Drill Bit is engineered for heavy-duty rotary hammer drilling in concrete, masonry, and reinforced concrete. Built on a chromium-nickel-molybdenum steel alloy body with uniformly brazed carbide inserts, this bit delivers the speed, accuracy, and durability that demanding anchor installation and concrete drilling applications require. The quad-head design and high-volume multi-flute spiral work together to maximize energy transfer, clear debris efficiently, and push through rebar-bearing substrates without stalling or sticking.

Key Features

• Uniformly brazed carbide inserts - Precisely and consistently brazed tips maintain full contact with the cutting surface, resulting in longer bit life compared to less controlled brazing methods.
• Self-centering tips - Engineered tip geometry locates the hole accurately from the first strike, reducing bit walk and improving placement precision in concrete and masonry.
• Chromium-nickel-molybdenum steel alloy body - Premium alloy construction delivers superior hammering quality and an extended service life under continuous, high-impact jobsite conditions.
• Heat-treatment and shot-peened finish - Proprietary heat-treatment procedures combined with a shot-peened surface finish increase surface hardness, improve drilling speed, reduce bit wear, and enhance resistance to bending forces.
• ANSI Standard B212.15 compliant - Meets the precise dimensional and performance tolerances of this industry standard, ensuring consistent, reliable results across compatible SDS-max rotary hammers.
• High-volume, multi-flute spiral - Rapidly channels concrete dust and debris out of the hole during drilling, reducing clogging and maintaining consistent drilling speed throughout the cut.
• 4 x 90 deg. head geometry - The quad-head configuration crushes through rebar and prevents the bit from sticking in reinforced concrete, keeping work moving in heavily reinforced slabs and walls.

Why This Product

• Built specifically for reinforced concrete - The 4 x 90 deg. quad-head geometry is designed to cut through rebar without binding, making this bit a reliable choice for anchor bolt installation and structural drilling in reinforced slabs, walls, and footings.
• Reduced operator fatigue on long drilling runs - The proprietary flute geometry optimizes impact energy transfer from the rotary hammer into the bit tip, which reduces vibration, noise, and stress on the operator during extended use.
• Engineered for accuracy and speed together - Self-centering tips eliminate the repositioning delays caused by bit walk, while the high-volume double-helix flute design clears material quickly so drilling speed is maintained from start to finish.
• Premium materials built for jobsite longevity - A chromium-nickel-molybdenum alloy body with heat-treated, shot-peened finish and uniformly brazed carbide inserts combines surface hardness, impact resistance, and cutting durability into a single bit built to outlast standard carbide options.

Specifications

• Model Number (MPN): MDMX10013Q
• Brand: Simpson Strong-Tie
• Head Type: Quad Head - 4x Drill Bit
• Shank Type: SDS-max
• Diameter: 1 in.
• Overall Length: 13 in.
• Drilling Depth: 8 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Alloy) with Carbide Tip
• Finish: Shot-Peened
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Approved Applications

• Drilling into concrete and reinforced concrete (including rebar-bearing slabs and walls)
• Masonry and concrete block drilling
• Anchor bolt hole installation in concrete substrates
• High-frequency rotary hammer drilling applications requiring fast material removal