The Simpson 1 in. x 18 in. SDS-Plus Carbide 2-Cutter Head Drill Bit is a premium, professional-grade rotohammer bit engineered for demanding concrete and masonry drilling applications. Built to precise tolerance requirements from a chromium-nickel-molybdenum steel alloy body and tipped with uniformly brazed carbide inserts, this bit delivers reliable performance when boring deep anchor and fastener holes in concrete, block, and similar hard materials. Its SDS-plus shank ensures a secure, tool-free connection with compatible rotohammer tools, while its chisel-shaped 2-cutter head and high-volume multi-flute spiral work together to penetrate efficiently and clear debris from the bore as you work.

Key Features

• Uniformly brazed carbide inserts - consistent bonding across the entire insert means the cutting edge holds up longer under repeated impact, reducing the frequency of bit replacement.
• Centering tip design - most bits in this line include a centering tip that makes it easy to start the hole exactly where intended, preventing walk-off on hard surfaces.
• Chromium-nickel-molybdenum steel alloy body - this high-strength alloy is specifically chosen for its ability to absorb hammering forces without fatiguing, supporting an extended service life even under continuous heavy use.
• Heat-treatment procedures and shot-peened finish - these processes increase surface hardness, improve resistance to bending forces, reduce drill bit wear, and contribute to faster drilling speeds over the life of the bit.
• Chisel-shaped 2-cutter drill-bit head - the head geometry penetrates the material aggressively and simultaneously directs concrete dust into the multi-flute spiral, keeping the cutting zone clear.
• High-volume, multi-flute spiral - quickly channels concrete dust from the hole back to the surface, improving drilling speed and reducing the heat and friction that contribute to premature wear.
• ANSI Standard B212.15 compliance - the bit meets this recognized industry standard, giving professionals confidence that dimensional accuracy and performance meet consistent, verifiable benchmarks.
• SDS-plus shank - compatible with a wide range of SDS-plus rotohammer tools, allowing fast, tool-free bit changes and efficient transfer of hammering energy directly to the cutting tip.

Why This Product

• Deep-hole capability in a single pass - with a 16 in. drilling depth and 18 in. overall length, this bit reaches the depth required for long anchor installations and structural fastening in concrete and masonry without needing extensions or intermediate steps.
• Built for repeated professional use - the combination of a chromium-nickel-molybdenum alloy body, heat-treated and shot-peened finish, and uniformly brazed carbide inserts means the bit is engineered to maintain performance across high-volume drilling tasks, not just occasional use.
• Faster drilling with less downtime - the chisel-shaped head and high-volume multi-flute spiral actively work together to clear concrete dust from the bore during drilling, which sustains drilling speed and reduces the need to repeatedly withdraw the bit to clean the hole.
• Verified quality from a trusted manufacturer - produced to exacting tolerances and conforming to ANSI Standard B212.15, this bit reflects the same standards Simpson applies across its full line of professional drilling and fastening products.

Specifications

• Model Number (MPN): MDPL10018
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus Shank
• Head Type: 2-Cutter Head
• Diameter: 1 in.
• Drilling Depth: 16 in.
• Overall Length: 18 in.
• Material: Hardened Steel
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Frequently Asked Questions

What type of shank does the MDPL10018 drill bit use?

The MDPL10018 features an SDS-plus shank, which is compatible with SDS-plus rotohammer tools for secure, tool-free bit changes and efficient hammer-drilling performance.

What is the drilling depth and overall length of this bit?

This drill bit has a drilling depth of 16 in. and an overall length of 18 in., making it well-suited for deep anchor and fastener holes in concrete and masonry applications.

What makes the carbide tip on this bit durable and long-lasting?

The carbide inserts are uniformly brazed for consistent quality, and the bit body is made from a chromium-nickel-molybdenum steel alloy. Combined with heat-treatment procedures and a shot-peened finish, these features increase surface hardness and resistance to bending forces, reducing wear over time.

How does this bit handle concrete dust during drilling?

The chisel-shaped drill-bit head penetrates the material and directs concrete dust into the multi-flute spiral. The high-volume, multi-flute spiral then quickly channels that dust out of the hole, improving drilling speed and keeping the bore clean during operation.

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