The Simpson SDS-Max Quad-Head Carbide Drill Bit MDMX10036Q is a heavy-duty rotary hammer bit engineered for demanding concrete drilling applications, including work in reinforced concrete containing rebar. Built on a proprietary flute geometry that reduces vibration and optimizes impact energy transfer, this 1 in. x 36 in. bit delivers enhanced drilling speed and durability while reducing noise and physical stress on the operator. Made in Germany, the quad-head dual-cutter design and patented, high-performance, reinforced core flute combine to maximize energy transfer and keep production moving on the toughest jobsites.

Key Features

• Uniformly brazed carbide inserts - bond securely and evenly to the bit head, resulting in longer bit life and consistent cutting performance across extended use
• Self-centering tips - locate the start of each hole precisely, reducing drift and ensuring accurate hole placement in concrete surfaces
• Chromium-nickel-molybdenum steel alloy body - provides the structural integrity needed for sustained hammering quality and an extended service life under repeated high-impact loads
• Heat-treatment procedures and shot-peened finish - increase surface hardness, boost drilling speed, reduce drill bit wear, and improve resistance to bending forces so the bit holds up through demanding applications
• High-volume, multi-flute spiral - quickly channels concrete dust from the hole to improve drilling speed and prevent debris buildup that slows progress
• 4 x 90 deg. head geometry - crushes through rebar and prevents sticking in reinforced concrete, keeping the bit moving without costly interruptions
• Patented, high-performance, reinforced core flute - maximizes energy transfer from the rotary hammer into the drill bit tip, translating hammer power directly into faster, more efficient cutting
• ANSI Standard B212.15 compliance - confirms the bit meets established industry dimensional and performance standards, giving professionals confidence in fit and quality
• SDS-max shank compatibility - works with both current and older SDS-max rotary hammers, making this bit a versatile addition to any existing tool setup

Why This Product

• Built to cut through rebar without stalling - the 4 x 90 deg. quad-head geometry is specifically engineered to crush through reinforced concrete and prevent the bit from binding, so crews can drill continuously without stopping to free a stuck bit
• Reduces operator fatigue on long drilling runs - the proprietary flute geometry optimizes impact energy transfer and actively reduces vibration and noise, meaning less physical strain on the operator during extended rotary hammer use
• Exceptional reach for deep anchor and through-hole applications - with an overall length of 36 in. and a drilling depth of 31 in., this carbide drill bit handles deep concrete drilling tasks that shorter bits simply cannot reach
• Premium materials and treatments work together for lasting durability - the combination of a chromium-nickel-molybdenum steel alloy body, uniformly brazed carbide inserts, heat treatment, and shot-peened finish means the bit resists wear, bending, and premature failure through heavy professional use

Specifications

• Model Number (MPN): MDMX10036Q
• Shank Type: SDS-max Shank
• Head Type: Quad Head - 4x Drill Bit
• Diameter: 1 in.
• Overall Length: 36 in.
• Drilling Depth: 31 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Steel Alloy)
• Tip Material: Carbide
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Approved Applications

• Rotary hammer drilling into concrete, including reinforced concrete containing rebar
• Applications requiring precise, accurate hole placement with self-centering tip technology
• Deep drilling applications requiring up to 31