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DD 250 Core drill

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Technical Data
Features & Applications
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Advanced heavy-duty diamond drilling tool for very small to large diameters of 12-450 mm (1/2" - 18”)

  • Diameter range: 12 - 450 mm
  • Base material: Concrete
  • Operation mode: Rig-based drilling system

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1
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Technical Data

Diameter range
12 - 450 mm
Base material
Concrete
Operation mode
Rig-based drilling system
Number of gears
4
No load RPM
gear 1: 240 rpm; gear 2: 580 rpm; gear 3: 1160 rpm; gear 4: 2220 rpm
Weight according to EPTA-Procedure 01/2003 without battery
15.3 kg
Weight of complete system
37 kg
Dimensions (LxWxH)
630 x 190 x 215 mm
A-weighted emission sound pressure level
93 dB (A) 1
Tri. vibr. value for drilling into concrete (wet) with diamond core bit A (ah,DD)
2.5 m/s²
Tri. vibr. value for drilling into concrete (wet) (ah,DD) - core bit A
HCL/HCS
Corner accessibility
50 mm
  1. According to the applicable product standard (see the Operating Instruction for more details)

Features & Applications

Features

  • Air-cooled, heavy-duty drive unit with four-speed gearing and convenient controls
  • Optional BL quick-release connection lets you change core bits in seconds – no tools required (keyless system)
  • Hole-starting function for large-sized core bits
  • Real-time information display – digital spirit level, gear selector, power control function, trip counter, running time counter and easily understood service messages
  • Designed for versatility – suitable for an extremely wide range of applications

Applications

  • Penetrations for ducts, pipes and cables
  • Openings for ventilation
  • Stitch drilling for breaches
  • Coring holes for service entries
  • Coring holes in ceilings, walls and floors without hammering and vibration

For approval or certificate information, please see individual items.

Services

Hilti Tool Service

  • Servicing is free of charge for up to 2 years, including wear and tear, pick-up and delivery
  • Product warranty against parts and manufacturing irregularities for 20 years
  • After 2 years repair costs are capped
  • 3-month no-cost period after each paid repair
  • Exclusive use of genuine Hilti spare parts
More information about Tool Services

Fleet Management

  • Monthly usage fee covering all tool, service and repair costs helping to ensure absolute cost control and back-office efficiency.
  • Theft coverage helps to reduce financial risk and unexpected expenses.
  • Loan tools during repair to reduce downtime.
  • Individual labels and online visibility provide tool fleet transparency
More information about Fleet Management
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