The Simpson SDS-Plus Solid-Tip Carbide Drill Bit, 3/8 in. x 12-1/4 in. is a professional-grade rotary hammer bit engineered for demanding concrete, masonry, and hard-material drilling applications. Built by Simpson to precise tolerance requirements and conforming to ANSI Standard B212.15, this bit incorporates a solid-tip carbide head, a chromium-nickel-molybdenum steel alloy body, and a high-volume multi-flute spiral that work together to deliver faster penetration, cleaner holes, and a longer service life than standard drill bits.

Key Features

• Uniformly brazed carbide inserts - consistent bonding across the tip prevents premature wear and extends overall bit life, reducing how often you need to stop and swap bits on the job.
• Chromium-nickel-molybdenum steel alloy body - provides the toughness and resilience needed to withstand repeated hammer blows, ensuring the bit holds up through heavy-duty 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 so the bit stays true under lateral stress.
• Chisel-shaped drill-bit head - penetrates hard material efficiently while directing concrete dust into the multi-flute spiral, keeping the cutting edge clear and maintaining consistent bite.
• High-volume, multi-flute spiral - rapidly channels concrete dust and debris out of the hole to prevent clogging, sustain drilling speed, and deliver cleaner, more accurate holes.
• Solid-tip carbide construction - offers superior penetration and longevity in concrete and masonry compared to standard tipped configurations, making it well suited for deep anchoring and through-hole applications.
• SDS-plus shank - locks securely into compatible rotary hammers for tool-free bit changes and efficient power transfer, minimizing downtime between holes.
• ANSI Standard B212.15 compliance - confirms the bit meets established dimensional and performance tolerances, giving professionals confidence in consistent, predictable results.

Why This Product

• Professional-grade durability built into every layer - from the brazed carbide tip to the heat-treated, shot-peened alloy body, every design element is aimed at extending service life and reducing replacement frequency in high-volume drilling work.
• Engineered for speed without sacrificing accuracy - the chisel-shaped head and high-volume multi-flute spiral work together to clear debris continuously, so drilling speed stays consistent from start to finish rather than slowing as the hole deepens.
• A complete line backed by precision manufacturing - Simpson produces this bit to the highest industry standards, with proprietary features that meet precise tolerance requirements, making it a reliable fit for professional rotary hammer work in concrete and masonry.
• 10 in. of usable drilling depth in a 12-1/4 in. package - the overall length accommodates the SDS-plus shank seating while still delivering the reach needed for deep anchor installations and structural through-holes.

Specifications

• Model Number (MPN): MDPL03712S
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus
• Head Type: Solid-Tip Carbide Drill Bit
• Diameter: 3/8 in.
• Overall Length: 12-1/4 in.
• Drilling Depth: 10 in.
• Body Material: Hardened Steel (Chromium-Nickel-Molybdenum Alloy)
• Tip Material: Solid-Tip Carbide
• Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Frequently Asked Questions

What type of shank does the MDPL03712S use, and which rotary hammers is it compatible with?

The MDPL03712S features an SDS-plus shank, which is the industry-standard quick-connect system used on a wide range of professional rotary hammers. The SDS-plus interface provides a secure, tool-free bit change while ensuring efficient power transfer from the hammer to the bit during drilling.

What is the maximum drilling depth this bit can achieve?

This drill bit has a maximum drilling depth of 10 in. The overall length of the bit is 12-1/4 in., with the additional length accommodating the SDS-plus shank and allowing the bit to seat properly in the tool chuck.

How does the bit design improve performance in concrete and masonry?

The chisel-shaped drill-bit head is specifically designed to penetrate hard materials efficiently while directing concrete dust into the high-volume, multi-flute spiral. This spiral rapidly channels dust and debris out of the hole, preventing clogging and maintaining consistent drilling speed throughout the application.

What makes the MDPL03712S more durable than standard drill bits?

Durability is achieved through several premium manufacturing processes: uniformly brazed carbide inserts extend bit life, a chromium-nickel-molybdenum steel alloy body withstands the stresses of hammer drilling, and heat-treatment procedures combined with a shot-peened finish increase surface hardness and resistance to bending forces. The bit also conforms to ANSI Standard B212.15, confirming it meets strict industry tolerance requirements.

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