The Simpson MDPL07518Q 3/4 in. x 18 in. SDS-plus Quad-Head Shank Drill Bit is a premium-quality, professional-grade carbide-tipped drill bit from Simpson Strong-Tie, engineered in Germany to the highest industry standards. Designed for demanding drilling applications in reinforced concrete, this bit features a proprietary 4 x 90 deg. Quad Head geometry that crushes through rebar and prevents sticking, while its chromium-nickel-molybdenum steel alloy body and heat-treated, shot-peened finish deliver exceptional durability, extended service life, and superior drilling speed.

Key Features

• Uniformly brazed carbide inserts result in longer bit life
• Most bits contain a centering tip that facilitates easy spot drilling
• Chromium-nickel-molybdenum steel alloy body ensures hammering quality and extended service life
• Heat-treatment procedures and shot-peened finish increase surface hardness, drilling speed, reduces drill bit wear and improves resistance to bending forces
• Drill bits conform to ANSI Standard B212.15
• High-volume, multi-flute spiral quickly channels concrete dust from the hole to improve drilling speed
• 4 x 90 deg. head geometry crushes through rebar and prevents sticking in reinforced concrete
• Designed to meet precise tolerance requirements for consistent, reliable performance
• Compatible with SDS-plus rotohammer chucks for secure tool-free bit changes

Specifications

• Model Number (MPN): MDPL07518Q
• Brand: Simpson Strong-Tie
• Shank Type: SDS-plus Shank
• Head Type: Quad Head 4x Drill Bit
• Diameter: 3/4 in.
• Overall Length: 18 in.
• Drilling Depth: 16 in.
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Steel Alloy Body with Carbide Tip)
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany (DE)

Frequently Asked Questions

What type of shank does the MDPL07518Q use, and which rotohammers is it compatible with?

The MDPL07518Q features an SDS-plus shank, which is designed to fit all SDS-plus rotohammer chucks. This includes current and older SDS-plus rotohammers from brands such as AEG, Black & Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo, Milwaukee, Porter Cable, Ramset, Red Head, Ryobi, and Skil.

Can this drill bit be used in reinforced concrete that contains rebar?

Yes. The MDPL07518Q is specifically engineered with a 4 x 90 deg. Quad Head geometry that crushes through rebar and prevents the bit from sticking in reinforced concrete, making it well suited for heavy-duty concrete drilling applications where rebar may be encountered.

What is the maximum drilling depth this bit can achieve?

The MDPL07518Q has a drilling depth of 16 in., with an overall length of 18 in. The difference between overall length and drilling depth accounts for the shank and any necessary clearance in the chuck.

What design features contribute to the long service life and durability of this bit?

Several proprietary features work together to maximize durability and service life: uniformly brazed carbide inserts resist wear at the tip; a chromium-nickel-molybdenum steel alloy body withstands hammering forces; heat-treatment procedures and a shot-peened finish increase surface hardness and resistance to bending; and the high-volume, multi-flute spiral efficiently channels concrete dust out of the hole to reduce friction and heat buildup during drilling.

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