Dewalt DWH303DH Onboard Dust Extractor for 1 in. SDS Plus Hammers

Model: dewndwh303dh
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WARNING: This product can expose you to Lead, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to
Dewalt DWH303DH Onboard Dust Extractor for 1 in. SDS Plus Hammers Model: dewndwh303dh
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Product Features & specs :

Dewalt DWH303DH Onboard Dust Extractor for 1 in. SDS Plus Hammers

This OSHA Table 1-compliant Dust Extractor works with the DCH273 1 in. Hammer. It features an OSHA 1926.1153-compliant Dust Box Assembly. With a filter cleaning mechanism and a HEPA filter, it removes 99.97% of airborne particles 0.3 microns or greater. The Dust Extractor has a powerful built in motor for increased suction during high performance drilling. The 2-second power-off delay ensures that dust extraction continues after the drill is switched off. It accomodates drill bit diameters up to 5/8 in. which allows users to drill overhead for 1/2 in. drop-ins.
  • Table 1-compliant dust management solution for 1 in. SDS Plus rotary hammers
  • Clear, durable dust box ensures users can see when dust box needs to be emptied
  • Replaceable dust nozzle to quickly change to new nozzle
  • Fits into tight spaces on scissor lifts and between overhead pipes and duct work
  • 2-Second power off delay ensures dust extraction to continue after drill is switched off
  • Built-in motor increases suction and high tool performance
  • Drill up to 5/8 in. diameter, 4 in. useable length, 6 in. overall length bits
  • Easily adjustable depth guage for accurate anchor drilling
  • Replaces D25303DH
What’s Included:
  • Onboard Dust Extractor - DWH303DH
  • Dust Box - DWH302DH
  • Side Handle
13.6 in.
5 in.
10.2 in.
3.08 lbs.
Compatible Models
SDS Plus Rotary Hammers
Dust Extractor

Reviews :

5.0 / 5.0
1 Review
5 Stars
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1 Star
Works great
I bought this about 6 months ago. Its great for overhead drilling, no more dust in my face. The of the pieces broke off when I dropped it but they send you two of them, so it’s all good. Only downside is that it covers the light of the rotary hammer.
This review was collected as part of a promotion
June 30, 2019
Originally posted at

Q & A :

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Browse 2 questions Browse 2 questions and 5 answers
Does it come with a hard case for storage?
Brian B on Apr 23, 2019
BEST ANSWER: No, it does not come with any storage. I currently rely on the box it came in to store when not in use. Not an ideal solution, but it's the best we've got right now.
Does it fit other brands ?
A shopper on Aug 11, 2018
BEST ANSWER: No, it’s made for the drill in the description. Will not fit all dewalt drills or other brands.