The Simpson 3/8 in. x 24 in. SDS-plus Shank Drill Bit is a professional-grade carbide-tipped rotary hammer bit built to handle demanding concrete and masonry drilling applications. Engineered to the highest industry standards and conforming to ANSI Standard B212.15, this bit combines a chromium-nickel-molybdenum steel alloy body with a precision 2-Cutter Head and high-volume multi-flute spiral design - delivering the drilling speed, durability, and control that professionals depend on for heavy-duty anchor installation, core drilling prep, and structural concrete work.

Key Features

• Uniformly brazed carbide inserts - secure, consistent bonding across the cutting tip maximizes bit life and reduces the risk of premature insert failure during sustained hammer drilling
• Centering tip design - facilitates easy spot drilling so the bit locks on target immediately, reducing walk-off and improving hole placement accuracy
• Chromium-nickel-molybdenum steel alloy body - delivers superior hammering quality and extended service life under the repeated impact stresses of rotary hammer use
• Heat-treatment procedures and shot-peened finish - increase surface hardness, improve drilling speed, reduce bit wear, and strengthen resistance to bending forces for a longer-lasting, more reliable bit
• Chisel-shaped drill-bit head - penetrates concrete and masonry efficiently while directing concrete dust directly into the multi-flute spiral, keeping the cutting zone clear
• High-volume, multi-flute spiral - quickly channels concrete dust out of the hole during drilling, improving speed and reducing the heat and friction that shorten bit life
• SDS-plus shank - provides secure, tool-free bit insertion and efficient energy transfer, compatible with standard SDS-plus rotary hammers used across professional trades
• ANSI Standard B212.15 compliance - confirms this bit meets established dimensional and performance tolerances, giving contractors confidence in consistent, predictable results

Why This Product

• Purpose-built for professional concrete and masonry work - the 2-Cutter Head geometry, carbide tip, and multi-flute spiral work together to deliver fast, clean holes in concrete, block, and masonry, making this bit well-suited for anchor installation and structural drilling tasks where precision and speed both matter
• Extended reach for deep drilling applications - with a 22 in. drilling depth in a 24 in. overall length, this bit reaches deep into concrete where standard-length bits fall short, reducing the need for extensions or multiple tool changes on the job
• Engineered for long service life, not just fast drilling - uniformly brazed carbide inserts, a heat-treated and shot-peened steel body, and a proprietary surface finish all work together to extend bit life and reduce replacement frequency, lowering the total cost of ownership for high-volume users
• Premium manufacturing standards behind every bit - produced to the highest industry standards for Simpson Strong-Tie and conforming to ANSI Standard B212.15, this drill bit is built to meet precise tolerance requirements that professional tradespeople rely on for consistent, repeatable performance across every hole

Specifications

• MPN: MDPL03724
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus Shank
• Head Type: 2-Cutter Head
• Diameter: 3/8 in.
• Overall Length: 24 in.
• Drilling Depth: 22 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Steel Alloy Body)
• Tip Material: Carbide
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Frequently Asked Questions

What type of shank does the MDPL03724 use, and which rotary hammers is it compatible with?

The MDPL03724 features an SDS-plus shank, which is designed to fit SDS-plus rotary hammers. This shank style provides secure, tool-free bit insertion and efficient energy transfer during hammer drilling operations.

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

The MDPL03724 has an overall length of 24 in., while its usable drilling depth is 22 in. The difference accounts for the SDS-plus shank portion that is held within the rotary hammer chuck, which is not available for actual material penetration.

How does the bit design help manage 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 concrete dust from the hole, which helps improve drilling speed and keeps the bore clear during operation.

What makes the carbide inserts and steel body on this bit durable for heavy-duty use?

The carbide inserts are uniformly brazed to maximize bit life and consistency. The chromium-nickel-molybdenum steel alloy body is further enhanced through heat-treatment procedures and a shot-peened finish, which together increase surface hardness, reduce bit wear, improve resistance to bending forces, and extend overall service life.

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