The Simpson SDS-Plus Fixed-Depth Drill Bit for 1/2 in Drop-In Anchors is a purpose-built hole preparation tool engineered to work specifically with Simpson 1/2 in Drop-In anchors, including the DIA and DIAB series. Designed for use in normal-weight concrete, sand-lightweight concrete, and hollow-core concrete, this stop bit takes the guesswork out of anchor hole preparation by drilling to a precise, controlled depth every time - helping ensure consistent, code-compliant installations from the first hole to the last.

Key Features

• Fixed drilling depth - the bit stops at exactly 2-1/16 in., so every hole is prepared to the correct depth for reliable 1/2 in Drop-In anchor seating without manual measurement or depth collar adjustments.
• 5/8 in diameter cutting size - correctly matched to the DIA and DIAB anchor series, ensuring the hole diameter is never too tight or too wide for proper anchor expansion and load transfer.
• SDS-Plus shank - compatible with standard SDS-Plus rotary hammer drills, allowing efficient, high-impact drilling in concrete without requiring specialty equipment.
• Application-specific design - optimized exclusively for Simpson Drop-In anchor hole preparation in normal-weight, sand-lightweight, and hollow-core concrete, reducing the risk of installation errors caused by using a general-purpose bit.

Why This Product

• Eliminates depth errors on the job - the fixed-depth stop means installers cannot overdrill or underdrill, directly reducing rework and protecting the structural integrity of every anchor point.
• Matched to Simpson anchor specifications - because this bit is sized and calibrated specifically for the DIA and DIAB anchor series, it supports the full design intent of those anchors rather than approximating it with a standard masonry bit.
• Fits the drills already on site - the SDS-Plus shank interfaces with the rotary hammer drills most concrete crews already own, so there is no need for additional tooling or adapters to get to work.
• Versatile concrete compatibility - approved for normal-weight, sand-lightweight, and hollow-core concrete, this stop bit covers the substrate types most commonly encountered in commercial and residential concrete anchor applications.

Specifications

• Model Number: MDPL062DIA
• Shank Type: SDS-Plus
• Bit Diameter: 5/8 in.
• Drilling Depth: 2-1/16 in.
• Compatible Anchor Diameter: 1/2 in.
• Compatible Anchor Models: DIA, DIAB
• Depth Type: Fixed
• Country of Origin: Germany

Approved Applications

• Hole preparation for Simpson Strong-Tie 1/2 in. Drop-In anchors (DIA and DIAB series)
• Normal-weight concrete
• Sand-lightweight concrete
• Hollow-core concrete

What's Included

• 1 x Simpson Strong-Tie MDPL062DIA Fixed-Depth SDS-Plus Drill Bit

Disclaimer: Product specifications are subject to change by the manufacturer without notice. Always consult the current Simpson Strong-Tie installation instructions and applicable building codes before use. Suitability for a specific application is the sole responsibility of the specifier and installer.

Frequently Asked Questions

Which anchors is this drill bit designed to work with?

The MDPL062DIA is engineered specifically for use with Simpson Strong-Tie 1/2 in. Drop-In anchors, including the DIA and DIAB series. It is not a general-purpose bit - its dimensions are optimized for proper hole preparation for these specific anchor models.

What is the drilling depth and bit diameter of this bit?

This is a fixed-depth bit with a drilling depth of 2-1/16 in. and a bit diameter of 5/8 in. The fixed depth eliminates guesswork and ensures every hole is drilled to the precise depth required for consistent 1/2 in. Drop-In anchor installation.

What type of shank does this bit have, and which drills are compatible?

The MDPL062DIA features an SDS-Plus shank, making it compatible with standard SDS-Plus rotary hammer drills for efficient, high-performance drilling.

What concrete types can this bit be used in?

This bit is suitable for hole preparation in normal-weight concrete, sand-lightweight concrete, and hollow-core concrete when installing Simpson Strong-Tie DIA and DIAB Drop-In anchors.