The Simpson 1 in. x 18 in. SDS-Plus Quad Head Carbide-Tipped Drill Bit is a professional-grade rotary hammer bit engineered for demanding concrete drilling applications, including work in heavily reinforced concrete. Built to precise tolerances from a chromium-nickel-molybdenum steel alloy body with uniformly brazed carbide inserts, this bit delivers the durability and performance that contractors and tradespeople require on the job site.

Key Features

• Uniformly brazed carbide inserts - bonding consistency across the full tip means the cutting edge holds up longer under repeated hammering, reducing how often bits need to be replaced
• Centering tip - helps the bit find and hold its starting position immediately, so spot drilling is fast and accurate without the bit wandering on the surface
• Chromium-nickel-molybdenum steel alloy body - a high-alloy steel composition that handles the cyclic impact stresses of rotary hammering and extends overall service life
• Heat-treatment procedures and shot-peened finish - increase surface hardness, drilling speed, reduce drill bit wear, and improve resistance to bending forces, keeping the bit straight and productive under heavy use
• Conforms to ANSI Standard B212.15 - verified dimensional accuracy and quality assurance that ensures the bit fits and performs as expected in SDS-plus rotary hammers
• High-volume, multi-flute spiral - quickly channels concrete dust from the hole to improve drilling speed and reduce heat buildup that can shorten bit life
• 4 x 90 deg. Quad Head geometry - four cutting edges oriented at 90 deg. crush through rebar and prevent the bit from sticking in reinforced concrete, keeping work moving without costly interruptions

Why This Product

• Built specifically for reinforced concrete - the 4 x 90 deg. Quad Head tip is purpose-designed to cut through rebar rather than deflect or bind, making this bit a reliable choice for structural and foundation work where rebar is unavoidable
• Premium materials and finishing processes work together - the combination of a chromium-nickel-molybdenum alloy body, uniformly brazed carbide inserts, heat treatment, and a shot-peened finish means this bit is built to outlast standard carbide bits in high-cycle drilling environments
• 16 in. drilling depth in an 18 in. overall length - the generous usable depth-to-length ratio allows this bit to reach deep anchor and fastener holes in thick concrete sections without requiring extensions
• Manufactured to exacting tolerances - precision engineering ensures consistent fit in SDS-plus chucks and repeatable hole diameter accuracy, which is critical when drilling for anchors or fasteners with tight tolerance requirements

Specifications

• Specification: Value
• Model Number (MPN): MDPL10018Q
• Shank Type: SDS-plus Shank
• Head Type: Quad Head 4x Drill Bit
• Diameter: 1 in.
• Overall Length: 18 in.
• Drilling Depth: 16 in.
• Material: Hardened Steel with Carbide Tip
• Standard Compliance: ANSI Standard B212.15
• Country of Origin: Germany

Approved Applications

• Drilling into reinforced concrete - the 4 x 90 deg. Quad Head geometry crushes through rebar and prevents sticking