The Simpson SDS-Plus Fixed-Depth Drill Bit for 3/8 in. Short Drop-In Anchor DIAS is a precision-engineered stop bit built to take the guesswork out of anchor hole preparation. Matched specifically to the Simpson 3/8 in. Short Drop-In anchor, this bit drills a consistent, correctly sized hole every time - giving installers confidence that each anchor site meets the dimensional requirements for reliable, code-compliant performance in normal-weight concrete, sand-lightweight concrete, and hollow-core concrete.

Key Features

• Fixed-depth stop design - prevents over-drilling and delivers a consistent hole depth matched to the 3/8 in. Short Drop-In anchor, so every installation meets proper seating requirements without measuring or guessing
• SDS-Plus shank - provides secure, tool-free bit changes and efficient power transfer with compatible rotary hammers, keeping work moving on the job site
• 1/2 in. drill bit diameter - produces the exact hole size required for the 3/8 in. Short Drop-In anchor, eliminating fit issues that can compromise anchor performance
• Compatibility with multiple concrete substrates - approved for use in normal-weight concrete, sand-lightweight concrete, and hollow-core concrete, making this bit a versatile choice across a range of structural applications
• Dedicated anchor match - engineered specifically for the Simpson Short Drop-In anchor, ensuring the hole dimensions align with that anchor's published installation requirements for dependable, predictable results

Why This Product

• Engineered for a perfect fit - because this stop bit is purpose-built for the Simpson 3/8 in. Short Drop-In anchor, installers get hole dimensions that align precisely with the anchor's requirements, reducing the risk of improper seating or field rework
• Built-in depth control means consistent results - the fixed-depth design removes the need for depth gauges or tape markings, delivering uniform hole preparation across every anchor location on a project
• Broad substrate versatility - approval for normal-weight concrete, sand-lightweight concrete, and hollow-core concrete means one bit covers a wide range of common structural concrete types encountered in commercial and residential construction
• SDS-Plus convenience for production drilling - the SDS-Plus shank integrates smoothly with widely used rotary hammer tools, supporting fast, efficient hole preparation when installing multiple anchors across a job

Specifications

• Model Number: MDPL050DIAS
• Shank Type: SDS-Plus
• Drill Bit Diameter: 1/2 in.
• Drilling Depth: 13/16 in.
• For Anchor Diameter: 3/8 in.
• Compatible Anchor Type: Short Drop-In Anchor (DIAS)
• Country of Origin: Germany

Approved Applications

• Normal-weight concrete
• Sand-lightweight concrete
• Hollow-core concrete

Frequently Asked Questions

What anchor is this drill bit designed to work with?

This fixed-depth drill bit is specifically designed to prepare anchor holes for the Simpson Strong-Tie 3/8 in. Short Drop-In anchor (DIAS). Using a matched bit and anchor ensures the hole dimensions meet the anchor's installation requirements.

What is the drilling depth produced by this bit?

The MDPL050DIAS drills to a fixed depth of 13/16 in. The fixed-depth stop is built into the bit to prevent over-drilling and ensure consistent hole preparation for proper anchor performance.

What drill bit diameter does the MDPL050DIAS produce?

This bit produces a 1/2 in. diameter hole, which is the correct hole size for installing the 3/8 in. Short Drop-In anchor (DIAS).

What concrete types is this drill bit compatible with?

The MDPL050DIAS is suitable for use in normal-weight concrete, sand-lightweight concrete, and hollow-core concrete substrates when installing Simpson Strong-Tie Drop-In anchors.