Model#: DEWND25553K

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Brand new items;Full manufacturer warranty available
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt D25553K 1-9/16 in. Spline Combination Rotary Hammer Kit

  • Dewalt D25553K 1-9/16 in. Spline Combination Rotary Hammer Kit
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  • 12 amp motor provides high performance and overload protection
  • 8.0 ft-lbs. of impact energy provides fast drilling and powerful chipping
  • Rear handle mount for increased user comfort in down drilling applications
  • Factory set clutch reduces sudden high torque reactions if bit jams
  • Trigger lock on provides increased user comfort in extended use chipping applications
  • Rubber grip helps reduce the level of vibration felt by the user
  • 1-9/16 in. Spline Combination Rotary Hammer Kit - D25553K
  • 360 Degree Side Handle
  • Depth Rod
  • Kit Box
Compliance and Restrictions
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


Length: 18.6 in.
Width: 5.35 in.
Height: 15 in.
Weight: 14 lbs.
Amperage: 12
Blows Per Minute(BPM): 3300
Bluetooth Compatibility: No
CSA Safety: Yes
Case Included: Yes
Case Type: Hard
Charger Included: No
Chuck Size: 1-9/16 in
Chuck Type: Spline
Cord Length(ft.): 8 ft
ETL Safety: No
Handle Type: D
Impact Energy: 8 ft-lbs
Motor Type: Brushed
No-Load Speed (RPM): 490
Power Source: Corded
UL Safety: No
Voltage: 120V
Wifi compatibility: No



5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (3)
Powerful (3)
Easy To Use (2)
Awesome tool
I bought this drill last week and I'm itching to use it on a job. Took me a bit to find the bits for it since its spline..but I have. I used it to drill a hole earlier today and it got the job done. So excited to have this tool thanks Dewalt
This review was collected as part of a promotion
June 29, 2019
Originally posted at
Great tool..!
Own several of these Dewalt spline drive hammer drills and have been very pleased with their performance. Super heavy duty cord, strong positive on/off switch and kinda ramps up at start up which makes it much easier to use than the "instant on" type. Strange review from other cust about spline drives. 5/8" Spline, SDS, SDS-max are all common types of tool engagement found in commercial concrete hammers and hammer-drills. Not something you'll find at Wal-mart.
November 1, 2018
Originally posted at
Yes, I would recommend this to a friend
like very much
January 8, 2015
Yes, I would recommend this to a friend
Easy To Use
Dewalt rotary hammer
Performed very well boring 1/2 inch wholes all day
Non stop anchoring racking It does not beat you up like
Some of the older models I am very happy with my purchase
I received excellent service from cpo as usual.
May 1, 2013
Yes, I would recommend this to a friend
Easy To Use
Used it hard, very happy
I'm very happy with this tool. We put in a long hard day with it and it didn't let me down.
March 24, 2012

Questions & Answers

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Browse 4 questions Browse 4 questions and 3 answers
Does the drill comes with bits?
A shopper on Aug 18, 2018
BEST ANSWER: The item will not include any bits.
I am interested to know what size concrete coring bits this rotary hammer can handle. We do a lot of drilling for drain pipes in concrete walls and need to use coring bits up to 4 3/4" for 4" PVC pipe. I also have drill bits from a Hitachi rotary hammer that are spline drive and would like to know if these are compatible with this rotary hammer. Thanks, Jim
jimbo on Feb 6, 2016
BEST ANSWER: This drill has a maximum drilling capacity of 1-9/16. For a drill that uses a core bit, we recommend using a larger drill.
I need to replace some older dewalt hammers that I cannot find made anymore.
They are d25550 models. They use spline bits 1/2" to 3/4" diameter holes for drilling concrete.
Would this be the machine to replace the ones I have or is there another unit you suggest?
We do not use SDS or SDSmax for these as the bits are not available so it has to be a spline bit/drive hammer. We typically drill 8"-14" depth concrete.
bmongillo on Aug 8, 2016
BEST ANSWER: Yes, the D25553K is a replacement for model D25550 spline rotary hammer
How do I change the bit, I'm using a rental ?
A shopper on Jul 4, 2017


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.