402976 - Dust Extraction Attachment for Cordless Rotary Hammer DH18DBLP4

The 402976 Dust Extraction Attachment for Cordless Rotary Hammer DH18DBLP4 is a self-contained unit with a HEPA filter that is compliant with OSHA's silica dust exposure regulations It captures 99.97% of particles 0.3 microns and larger. This unit has a guide hole designed to align with the hammer and bit for accurate drilling. It connects to the hammer drill body and uses the power provided by the battery. This attachment has automatic power off with a three second delay, allowing for the unit to collect any remaining dust.

  • Compatible with Hitachi DH18DBLP4 18V Brushless Lithium Ion SDS Plus Rotary Hammer (Tool Body Only)
  • Powered by Li-Ion battery when unit is connected to the tool
  • Built-in motor
  • Self contained unit with a HEPA Filter captures 99.97% of particles 0.3 microns and larger
  • CFM 12.36 air flow rate
  • Translucent collector box with 300 ml filter capacity 
  • 3-Second vacuum run-off time for effective extraction of additional particles
  • Capacities:
    • 11/64' to 25/32' effective bit diameter
    • 1-31/32' to 3-15/16' effective bit length
    • 3-11/32' max effective hole drilling depth


Max Airflow

12.36 CFM

Filter Type


Filter Capacity

300 mL

Bit Diameter (Effective Capacity)

11/64' to 25/32"

Bit Length (Effective Capacity)

1-31/32" to 3-15/16"

Max Effective Hole Drilling Depth


Dimensions (L x W x H)

14-57/64" x 3-35/64" x 12-3/62"


3.8 lbs