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DH28PMY Demolishing

DH28PMY Demolishing

Country/Region china

Company Hitachi Koki Co., Ltd.

Categories Chisel Drill Bit

Update 2016-08-16 10:27:42

ICP License Issued by the Chinese Ministry

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28mm (1-1/8") Rotary Hammer

  • PDF Leaflet (645KB)
  • Quick-release tool retainer
Makes it faster to switch between the SDS-plus drill bit holder and the drill chuck holder according to applications.
NoteTurn the change lever to "Hammering only" mode when replacing a tool retainer with another.
  • : Mesh the lock grip with spline, push in and turn it.
  • : Turn the lock grip and pull out the SDS-plus drill bit holder or the drill chuck holder.
Approximately 2 times longer life *1 achieved by reliable structure that includes a hammering mechanism same as Hitachi large hammers.
  • 1. Hammering mechanism features air channel system
  • Up to 50% more volume of air cushion *1 reduces wear and damage inside cylinder.
  • 2. Ball bearings
  • Ball bearing seals in grease and holds temperature low to protect melt down of gear cover.
  • 3. New internal pressure control mechanism
  • Provides smooth airflow in or out of the gear cover to stabilize and ensure hammering action.
  • *1 In comparison with conventional models DH24PC3 / DH24PB3
Powerful motors and optimized hammering achieved up to 30% faster drilling speed *3 to improve work efficiency.
  • *2
  • As of May 2014. Among 2kg class rotary hammers made by leading power tool manufacturers, surveyed by Hitachi Koki.
  • *3
  • A comparison of the model DH28PMY and the conventional model DH24PC3. Mean value for drilling into concrete with drill bits between 8mm and 28mm diameters. The results may vary depending on operating conditions.
Features Hitachi's User Vibration Protection (UVP) system that reduces the vibrations from concrete drilling or chiselling with resonance occured by moving a weight in the opposite direction to the movement of the hammer. Reduction of vibration by approximately 33% *1 makes operations more comfortable.
  • *4
  • As of May 2014. Among 2kg class rotary hammers made by leading power tool manufacturers, surveyed by Hitachi Koki.
  • *5
  • In comparison with conventional models DH24PC3 / DH24PB3.
  • Located on the side of the tool body for easy operation
  • Large change lever
  • Rotation Only
  • For drilling in steel or wood, etc.
    (With standard accessories drill chuck holder)
  • Rotation + Hammering
  • For drilling into concrete, etc.
  • Hammering Only
  • Chiseling of concrete or groove digging, etc.
Angle adjustment function
When using a cold chisel or cutter, the orientation of the tool tip can be adjusted by setting the change lever as shown on the left.
  • Soft and easy to grip for comfortable operation!
  • Double-molded side handle
360° rotation allows more effective operation.
  • Simple bit mounting
  • One-push action for quick bit mounting
A bit can be mounted by simply inserting it into the tool holder.


Capacity: Concrete3.4 - 28mm (1/8" - 1-1/8")
Capacity: Steel13mm (1/2")
Capacity: Core bit25 - 50mm (1" - 2")
Capacity: Wood32mm (1-1/4")
Power Input850W
Bit ShankSDS-plus
No-Load Speed0 - 1,100min-1
Full-Load Impact Rate0 - 4,300min-1
Overall LengthWhen mounting the drill bit holder400mm (15-3/4")
Overall LengthWhen mounting the drill chuck holder437mm (17-13/64")
Weight (excluding cord) *63.2kg (7.1lbs.)
Vibration Total Values (triax vector sum) *7
Hammer drilling into concrete
Vibration emission value ah, HD = 11.5m/s2
Uncertainty K = 1.5 m/s2
Vibration Total Values (triax vector sum) *7
Equivalent chiselling value
Vibration emission value ah, CHeq = 10.5m/s2
Uncertainty K = 1.5 m/s2
Standard AccessoriesSide Handle, Depth Gauge, Drill chuck holder, Carrying Case
*6: Weight: According to EPTA-Procedure 01/2003.
*7: The tri-axial vibration values were measured according to EN60745-2-6.

Product Tags:

concrete coring drill bits


mining chisel drill bit


28mm hammer drill

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