The DeWALT 3/4" x 16" x 18" SDS-Plus 2-Cutter Hammer Bit DW5456 is a professional-grade rotary hammer drill bit engineered for demanding concrete, masonry, and anchor installation work. Designed with a two-cutter carbide tip and a robust tapered core, this SDS+ bit delivers the durability and hole quality that contractors and tradespeople need when drilling deep holes in hard substrates. Backed by DeWALT's No Break Guarantee, the DW5456 is built to handle the toughest drilling applications without compromising speed or precision.

Key Features

• Tapered core for maximum bit strength - the strong, reinforced core resists flute breakage even during deep-hole drilling, meaning fewer bit failures and less downtime on the job.
• Two-stage flute design with variable helix pattern - this geometry moves debris away from the cutting zone quickly and efficiently, allowing for faster, more consistent drilling speeds in concrete and masonry.
• Two sharp carbide-cutting edges - dual cutters produce clean, round, true holes that are essential for reliable and secure anchor installation.
• Wear mark indicator - a visible wear indicator lets you confirm the bit is still at an accurate, usable diameter, so you always know when the bit is performing within spec.
• No Break Guarantee - if the bit fails for any reason while the wear mark is still visible, DeWALT will replace it, giving you added confidence in long-term performance and value.
• SDS-Plus shank compatibility - fits standard SDS+ rotary hammers, ensuring a secure, tool-free bit change and maximum energy transfer from hammer to bit.
• 3/4 in. diameter, 16 in. usable length, 18 in. overall length - the generous working length allows deep anchor holes that would be out of reach for shorter bits, expanding the range of applications this bit can handle.

Why This Product

• For trades that depend on secure anchor placement, the two sharp carbide-cutting edges produce clean, round, true holes - reducing the risk of anchor misalignment or loose fits that could compromise structural integrity.
• The No Break Guarantee means that if the bit fails while the wear mark is still visible, DeWALT will replace it - giving buyers a reliable, low-risk investment for heavy rotary hammer work.
• With a 16 in. usable length and 18 in. overall length, this bit is particularly well-suited for deep embedment anchor applications where standard-length bits simply cannot reach.
• The two-stage flute with variable helix pattern actively clears concrete dust and debris from the hole, helping to maintain drilling speed and reduce heat buildup during extended or repeated drilling sessions.

Specifications

• Manufacturer Part Number: DW5456
• Diameter: 3/4 in.
• Usable Length: 16 in.
• Overall Length: 18 in.
• Pack Size: 1

Frequently Asked Questions

What type of rotary hammer does the DW5456 fit?

The DW5456 uses an SDS-Plus (SDS+) shank, which is compatible with standard SDS-Plus rotary hammers. This connection type allows for a secure, tool-free bit installation and efficient transfer of hammering energy into the bit.

What does the No Break Guarantee cover for this bit?

If your DW5456 bit fails for any reason while the wear mark is still visible, DeWALT will replace it. Note that this guarantee excludes models DW5400, DW5401, and DW5401B25 - but the DW5456 is fully covered under this program.

How do I know when the bit has worn past its usable diameter?

The DW5456 features a wear mark indicator. As long as this mark is still visible, the bit is drilling at an accurate diameter suitable for secure anchor installation. Once the mark is no longer visible, the bit has worn beyond its rated usable diameter and should be replaced.

Is this bit appropriate for deep anchor hole applications?

Yes. With a 16 in. usable length and an 18 in. overall length, the DW5456 is designed specifically to handle deep-hole drilling where shorter bits cannot reach. The tapered core provides added resistance to flute breakage under the stress of extended deep-hole work, and the variable helix flute design efficiently clears debris from deep holes throughout the drilling process.