The Simpson SDS-Plus Quad Head Carbide Drill Bit 5/8 in. x 8 in. is a premium, professional-grade rotary hammer bit engineered for demanding concrete and masonry drilling applications, including work in reinforced concrete where standard bits struggle. Built to the highest industry standards and conforming to ANSI Standard B212.15, this carbide-tipped bit combines a hardened chromium-nickel-molybdenum steel alloy body with a proprietary 4 x 90 deg. Quad Head tip geometry to deliver faster drilling speeds, longer service life, and reliable performance through even the toughest substrates.

Key Features

• Uniformly brazed carbide inserts - consistent brazing across the tip maintains cutting integrity longer, reducing the frequency of bit replacement on the job.
• Centering tip design - facilitates easy spot drilling so the bit stays on target from the first contact, improving accuracy and saving setup time.
• Chromium-nickel-molybdenum steel alloy body - engineered specifically for hammering quality and extended service life, holding up through repetitive impact cycles without premature fatigue.
• Heat-treatment procedures and shot-peened finish - increase surface hardness and drilling speed, reduce bit wear, and improve resistance to bending forces, keeping the bit straight and sharp through heavy use.
• ANSI Standard B212.15 compliance - confirms the bit meets recognized dimensional and performance tolerances, so it fits and functions reliably in SDS-plus rotary hammers.
• High-volume, multi-flute spiral - quickly channels concrete dust out of the hole during drilling, reducing friction and heat buildup to maintain drilling speed and protect bit life.
• 4 x 90 deg. Quad Head geometry - crushes through rebar and prevents sticking in reinforced concrete, allowing controlled, continuous drilling without bit seizure in tough conditions.

Why This Product

• Built specifically for reinforced concrete - the 4 x 90 deg. Quad Head tip is purpose-designed to push through rebar without getting stuck, making this bit a practical choice for structural drilling where standard carbide bits frequently bind or stall.
• Professional durability engineered into every layer - the combination of a chromium-nickel-molybdenum alloy body, heat treatment, and shot-peened finish works together to extend service life and resist the bending forces and wear that shorten the life of lesser bits.
• Faster drilling with less cleanup downtime - the high-volume, multi-flute spiral actively evacuates concrete dust from the hole as you drill, so you spend less time clearing debris and more time moving through the work.
• Simpson quality backed by rigorous standards - manufactured to precise tolerance requirements and conforming to ANSI Standard B212.15, this bit delivers the consistent fit and predictable performance that professionals depend on across SDS-plus rotary hammer platforms.

Specifications

• Model Number (MPN): MDPL06208Q
• Diameter: 5/8 in.
• Overall Length: 8 in.
• Drilling Depth: 6 in.
• Shank Type: SDS-plus Shank
• Head Type: Quad Head 4x Drill Bit
• Material: Hardened Steel (Chromium-Nickel-Molybdenum Alloy Body with Carbide Tip)
• Country of Origin: Germany
• Standards Compliance: ANSI Standard B212.15

Frequently Asked Questions

What type of shank does the MDPL06208Q use, and which rotary hammers is it compatible with?

The MDPL06208Q features an SDS-plus shank, which is the industry-standard quick-release connection compatible with SDS-plus rotary hammers across a wide range of professional tool brands.

What makes the Quad Head tip design advantageous for drilling in reinforced concrete?

The 4 x 90 deg. Quad Head geometry is specifically engineered to crush through rebar and prevent the bit from sticking in reinforced concrete, allowing for faster, more controlled drilling through tough materials without bit seizure.

How does the multi-flute spiral design improve drilling performance?

The high-volume, multi-flute spiral rapidly channels concrete dust away from the cutting zone and out of the hole during drilling. This continuous dust evacuation reduces friction and heat buildup, directly improving drilling speed and extending bit life.

What is the effective drilling depth of the MDPL06208Q, and what quality standards does it meet?

The MDPL06208Q delivers an effective drilling depth of 6 in. with an overall length of 8 in. The bit conforms to ANSI Standard B212.15, ensuring it meets the precise dimensional and performance tolerances required for professional-grade drilling applications.

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