The Simpson 1 in. x 10 in. SDS-Plus Quad Head Carbide Drill Bit is a professional-grade rotary hammer bit engineered for demanding concrete and masonry drilling applications. Built to precise tolerances with proprietary design features, this bit is purpose-built for contractors and tradespeople who need reliable, high-speed performance when boring through concrete, masonry, and reinforced concrete - including applications where the bit must push through embedded rebar without sticking or binding.

Key Features

• Uniformly Brazed Carbide Inserts - Consistent brazing along the carbide tip distributes stress evenly across the cutting edge, delivering longer bit life and dependable performance over repeated heavy-duty use.
• Centering Tip - Facilitates easy spot drilling, keeping the bit precisely on target at hole start and preventing walking or slipping on hard concrete and masonry surfaces.
• Chromium-Nickel-Molybdenum Steel Alloy Body - This premium alloy composition ensures outstanding hammering quality and extended service life under the sustained impact loads of rotary hammer drilling.
• Heat-Treatment and Shot-Peened Finish - Increases surface hardness and drilling speed, reduces drill bit wear, and improves resistance to bending forces - keeping the bit performing consistently in high-production environments.
• 4 x 90 deg. Quad-Head Geometry - The four-point head crushes through rebar and actively prevents the bit from sticking in reinforced concrete, making it the right choice for demanding structural drilling work.
• High-Volume, Multi-Flute Spiral - Quickly channels concrete dust away from the cutting zone and out of the hole, improving drilling speed and reducing heat buildup during extended use.
• ANSI Standard B212.15 Compliance - Confirms dimensional accuracy and proper fit with standard SDS-plus rotary hammers, giving buyers confidence in consistent, interoperable performance.
• SDS-Plus Shank - Enables secure, tool-free bit changes and efficient transfer of hammering energy from the rotary hammer to the bit, reducing operator effort and downtime between holes.

Why This Product

• Built for Reinforced Concrete - The 4 x 90 deg. Quad-Head design sets this bit apart for rebar-heavy applications. Where standard bits risk sticking or deflecting, this geometry crushes through embedded steel and keeps the bore on course.
• Professional-Grade Durability from the Ground Up - The combination of a chromium-nickel-molybdenum alloy body, uniformly brazed carbide inserts, and a heat-treated shot-peened finish means this bit is built to withstand the punishment of high-production drilling without early wear or failure.
• Faster Drilling with Less Cleanup - The high-volume, multi-flute spiral actively evacuates concrete dust from the hole as you drill, maintaining cutting efficiency and reducing the pauses needed to clear debris on deep holes up to 8 in. in drilling depth.
• Manufactured to the Highest Industry Standards - Produced in Germany and conforming to ANSI Standard B212.15, this Simpson drill bit meets strict dimensional and performance requirements, ensuring it pairs correctly with SDS-plus rotary hammers and performs to professional expectations on every job.

Specifications

• Model Number (MPN): MDPL10010Q
• Shank Type: SDS-plus Shank
• Head Type: Quad Head - 4x Drill Bit
• Diameter: 1 in.
• Overall Length: 10 in.
• Drilling Depth: 8 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Alloy Body with Carbide Tip)
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Approved Applications

• Drilling into concrete, masonry, and reinforced concrete with SDS-plus rotary hammers
• Applications requiring the bit to bore through rebar within reinforced concrete - the 4 x 90 deg. Quad-Head geometry crushes through rebar and prevents sticking
• Precision spot drilling where the centering tip is needed to prevent walking at hole start
• High-production drilling environments where extended bit life from uniformly brazed carbide inserts reduces downtime
• Any drilling and demolition need requiring a premium-quality, professional-grade SDS-plus drill bit

Frequently Asked Questions

What type of rotary hammer is the Simpson MDPL10010Q compatible with?

This drill bit features an SDS-plus shank, making it compatible with standard SDS-plus rotary hammers. The SDS-plus interface allows for secure, tool-free bit changes and efficient transfer of hammering energy from the tool to the bit.

Can this drill bit cut through rebar in reinforced concrete?

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

What are the key dimensions of this drill bit?

The Simpson MDPL10010Q has a diameter of 1 in., an overall length of 10 in., and a maximum drilling depth of 8 in.

What materials and manufacturing processes are used to enhance the durability of this bit?

The bit body is constructed from a chromium-nickel-molybdenum steel alloy for superior hammering quality and extended service life. The carbide inserts are uniformly brazed for consistent, long-lasting tip performance. Heat-treatment procedures and a shot-peened finish are applied to increase surface hardness, improve drilling speed, reduce wear, and enhance resistance to bending forces. The bit also conforms to ANSI Standard B212.15 for dimensional accuracy and reliability.