The Simpson SDS-Plus Quad Head Carbide Drill Bit, 3/4 in. x 12 in. is a professional-grade rotary hammer bit engineered for demanding concrete and reinforced concrete drilling applications. Built to meet precise tolerance requirements and conforming to ANSI Standard B212.15, this carbide-tipped bit delivers the durability, drilling speed, and reliability that contractors and tradespeople require when working with tough base materials, including rebar-reinforced slabs and walls.

Key Features

• 4 x 90 deg. Quad Head geometry - crushes through rebar and prevents the bit from sticking in reinforced concrete, keeping work moving without costly interruptions
• Uniformly brazed carbide inserts - deliver consistent contact and bond strength across the entire tip, resulting in longer bit life and reduced replacement frequency
• Chromium-nickel-molybdenum steel alloy body - provides the structural toughness needed to handle repeated hammer blows, ensuring hammering quality and extended service life
• Heat-treatment procedures and shot-peened finish - increase surface hardness, improve resistance to bending forces, reduce drill bit wear, and increase drilling speed so jobs get done faster
• High-volume, multi-flute spiral design - quickly channels concrete dust out of the hole during drilling, improving drilling speed and reducing the effort needed to complete each bore
• Centering tip - facilitates easy spot drilling so the bit starts precisely where intended, reducing the chance of bit walk on hard surfaces
• SDS-plus shank - compatible with all current and older SDS-Plus rotohammers from major manufacturers, so the bit integrates seamlessly with the tools already on the job site
• ANSI Standard B212.15 compliance - confirms the bit meets established industry dimensional and performance tolerances, giving buyers confidence in consistent, predictable results

Why This Product

• Built specifically for reinforced concrete - the 4 x 90 deg. Quad Head tip geometry is purpose-engineered to crush through rebar and resist sticking, making this bit a reliable choice for structural drilling jobs where standard bits struggle or fail
• Premium construction from start to finish - the combination of a chromium-nickel-molybdenum alloy body, uniformly brazed carbide inserts, heat treatment, and a shot-peened finish means this bit is engineered at every level for longer service life and faster drilling, reducing downtime and bit turnover on the job
• Broad rotary hammer compatibility - the SDS-plus shank works with all current and older SDS-Plus rotohammers from a wide range of major manufacturers, so there is no need to invest in new tooling or adapters to put this bit to work immediately
• Designed and manufactured to exacting standards - produced to precise tolerance requirements and tested against ANSI Standard B212.15, this Simpson bit delivers the consistent, repeatable performance that professional applications demand

Specifications

• Model Number (MPN): MDPL07512Q
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus Shank
• Head Type: Quad Head 4x Drill Bit
• Diameter: 3/4 in.
• Overall Length: 12 in.
• Drilling Depth: 10 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Steel Alloy Body with Carbide Tip)
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Frequently Asked Questions

What type of shank does the MDPL07512Q use, and which rotary hammers is it compatible with?

The MDPL07512Q features an SDS-plus shank, which is compatible with all current and older SDS-Plus rotohammers from major manufacturers including AEG, Black & Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo, Milwaukee, Porter Cable, Ramset, Red Head, Ryobi, and Skil.

What makes the Quad Head tip geometry on this drill bit special?

The 4 x 90 deg. Quad Head geometry is specifically engineered to crush through rebar and prevent the bit from sticking in reinforced concrete, making this bit particularly well-suited for drilling applications where rebar may be encountered.

What is the actual drilling depth of this 12-inch bit?

While the overall length of the MDPL07512Q is 12 inches, the effective drilling depth is 10 inches. The remaining length accounts for the SDS-plus shank and chuck engagement area.

How does this drill bit achieve faster drilling speeds and longer service life?

The MDPL07512Q combines several engineering features to maximize performance: uniformly brazed carbide inserts extend bit life, a high-volume multi-flute spiral rapidly channels concrete dust out of the hole to improve drilling speed, and heat-treatment procedures combined with a shot-peened finish increase surface hardness, reduce wear, and improve resistance to bending forces. The chromium-nickel-molybdenum steel alloy body further contributes to hammering quality and extended service life.

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