The Simpson 7/8 in. x 18 in. SDS-plus Shank Drill Bit is a premium, professional-grade carbide-tipped bit engineered by Simpson Strong-Tie for demanding concrete drilling and demolition applications. Built on a chromium-nickel-molybdenum steel alloy body and fitted with a 2-Cutter Head, this rotary hammer bit is manufactured to the highest industry standards, incorporating proprietary design and finishing processes that boost durability, accelerate penetration rates, and make the tool easier to control on the job site - giving contractors and tradespeople a reliable bit they can count on through heavy, repetitive use.

Key Features

• Uniformly brazed carbide inserts - carbide is locked in evenly around the tip, so the cutting edge wears consistently and the bit lasts longer between replacements
• Centering tip - facilitates easy spot drilling so the bit stays on target when starting a hole, reducing walk and wasted effort
• Chromium-nickel-molybdenum steel alloy body - ensures hammering quality and extended service life, standing up to the repeated impact forces of rotary hammer drilling without fatiguing prematurely
• Heat-treatment procedures and shot-peened finish - increase surface hardness, drilling speed, reduce drill bit wear, and improve resistance to bending forces, keeping the bit straighter and sharper through tough materials
• Chisel-shaped drill-bit head - penetrates the material and directs concrete dust into the multi-flute spiral, maintaining cutting efficiency deeper into the hole
• High-volume, multi-flute spiral - quickly channels concrete dust from the hole to improve drilling speed and reduce clogging during deep masonry bores
• SDS-plus shank - locks securely into SDS-plus rotary hammer drills for tool-free bit changes and reliable torque transfer on every stroke
• Conforms to ANSI Standard B212.15 - meets established performance and dimensional requirements for carbide-tipped masonry bits, so buyers can trust the bit will perform to consistent, verified tolerances

Why This Product

• Professional-grade engineering from a trusted structural brand - Simpson Strong-Tie applies the same precision and quality controls to these drill bits as it does across its full line of structural products, giving trades professionals a masonry drilling tool built to perform under real job site conditions
• Built to go deep without slowing down - the combination of a chisel-shaped 2-Cutter Head and high-volume multi-flute spiral works together to clear concrete dust continuously, maintaining penetration speed even on deep 16 in. drilling runs
• Longer service life through advanced metallurgy and finishing - the chromium-nickel-molybdenum alloy body, uniformly brazed carbide inserts, heat treatment, and shot-peened finish all work in concert to reduce wear and resist bending, meaning fewer bit replacements and lower long-term tooling costs
• Verified dimensional precision for anchor and fastener compatibility - compliance with ANSI Standard B212.15 ensures the 7/8 in. diameter is held to tight tolerances, making this bit a dependable choice when drilling holes sized for anchors, threaded rod, or concrete fasteners where fit matters

Specifications

• Model Number (MPN): MDPL08718
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus Shank
• Head Type: 2-Cutter Head
• Diameter: 7/8 in.
• Drilling Depth: 16 in.
• Overall Length: 18 in.
• Material: Hardened Steel
• Tip Material: Carbide
• ANSI Standard: B212.15
• Country of Origin: Germany

Frequently Asked Questions

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

This drill bit features an SDS-plus shank, which is compatible with SDS-plus rotary hammer drills. The SDS-plus system is a widely used standard found on rotary hammers from many leading tool manufacturers.

What is the maximum drilling depth this bit can achieve?

The Simpson MDPL08718 has a drilling depth of 16 in., with an overall length of 18 in. The additional length beyond the drilling depth accommodates the shank connection to the tool.

What makes this drill bit more durable than standard bits?

This bit features a chromium-nickel-molybdenum steel alloy body, uniformly brazed carbide inserts, and undergoes heat-treatment procedures combined with a shot-peened finish. Together, these attributes increase surface hardness, reduce wear, and improve resistance to bending forces for extended service life.

Does this drill bit meet any recognized industry standards?

Yes. The Simpson MDPL08718 conforms to ANSI Standard B212.15, which establishes performance and dimensional requirements for carbide-tipped masonry drill bits, ensuring consistent quality and precision.

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