HEAVY DUTY ROTARY HAMMER - DEWALT D251 12(K) / D25113K / D25114K / D25213K - Technical data

Oct 23, 2026

Heavy duty rotary hammer manual for DEWALT models D251 12(K), D25113K, D25114K, and D25213K. Presents key technical data including voltage, input power, no-load and load speeds, impact energy, drilling ranges for steel/wood/concrete, chisel positions, core drilling capacity, SDS-plus tool holder, collar diameter, and tool weight. Includes model-specific sound pressure and acoustic power levels, vibration acceleration values, product declaration references, and detailed safety instructions covering electrical shock prevention, hearing protection, work area safety, PPE, safe operation, and inspection before use.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Technical data

Safety instructions

D251 12(K) D251 13K D251 14K D252 13K | English | 6 | | --- | --- | | ੄Ⱥড় | 13 | | ०༹ዐ࿔ | 20 | | ݏ༹ዐ࿔ | 27 | | | 34 | | Copyright DEWALT | | A 3 1 11 10 6 7 9 5 4 3 11 10 6 7 9 5 4 D252 13K D251 13K | 4 5

B1 | | C | 6

| | --- | --- | --- | --- | | B2 | | | | | D |
10 | E |
| |
F1 | 3

F2 | | | --- | --- | --- | | 6 8

G | H | | HEAVY DUTY ROTARY HAMMER DEILL D251 12(K)/D25113K/D25114K/D25213K | Congratulations!
You have chosen a DEWALT tool. Years of experience, thorough product development and innovation make DEWALT one of the most reliable partners for professional power tool users.
Technical data | | | | | | | --- | --- | --- | --- | --- | --- | | | | D25112(K) | D25113K | D25114K | D25213K | | Voltage | V | 220 | 220 | 220 | 220 | | Power input | W | 800 | 800 | 800 | 800 | | No-load speed | min-1 | 0-1,150 | 0-1,150 | 0-1,150 | 0-1,150 | | Load speed | min-1 | 0-830 | 0-830 | 0-830 | 0-830 | | Impact energy hammer drilling | J | 3.1 | 3.1 | 3.1 | 3.1 | | chiselling | J | - | 3.4 | 3.4 | 3.4 | | Maximum drilling range in steel/wood/concrete | mm | 13/30/26 | 13/30/26 | 13/30/26 | 13/30/26 | | Chisel positions | | - | 51 | 51 | 51 | | Core drilling capacity in soft brick | mm | 68 | 68 | 68 | 68 | | Tool holder | | SDS-plus® | SDS-plus® | SDS-plus® | SDS-plus® | | Collar diameter | mm | 54 | 54 | 54 | 54 | | Weight | kg | 2.55 | 2.6 | 2.6 | 2.75 | The following symbols are used throughout this manual: Denotes risk of personal injury, loss of life or damage to the tool in case of nonobservance of the instructions in this manual. Denotes risk of electric shock. Fire hazard. EC-Declaration of conformity D251 12(K)/D25113K/D25114K/D25213K DEWALT declares that these power tools have been designed in compliance with: 98/37/EEC, 89/336/EEC, 73/23/EEC, EN 50144, EN 55014-2, EN 55014-1, EN 61000-3-2 & EN 61000-3-3 . For more information, please contact DEWALT at the address below, or refer to the back of the manual. Level of sound pressure according to 86/188/EEC & 98/37/EEC, measured according to EN 50144: | D25112(K ) D25113K | | | | | --- | --- | --- | --- | | LpA (sound pressure) | dB(A)* | 90.5 | 90.5 | | LWA (acoustic power) | dB(A) | 99 | 99 | | D25114K | | | | | | --- | --- | --- | --- | --- | | LpA (sound pressure) | | dB(A)* | 90.5 | | | LWA (acoustic power) | | dB(A) | 99 | | | * at the operator’s ear
Take appropriate measures for the protection of hearing.
Weighted root mean square acceleration value according to EN 50144:
| | | | | | D25112(K ) | D25113K | | D25114K | D25213K | | 9.2 m/s2 | 9.2 m/s2 | | 9.2 m/s2 | 9.2 m/s2 | Director Engineering and Product Development Horst Großmann DEWALT, Richard-Klinger-Straße 11 D-65510, Idstein, Germany Safety instructions When us ing power tools , always observe the safety regulations applicable in your country to reduce the ris k of fire, electric s hoc k and personal injury. R ead all of this manual carefully before operating the tool. S ave this manual for future reference. General 1 Keep work area c lean Cluttered areas and benches can cause accidents. 2 C ons ider work area environment Do not expose the tool to rain. Do not use the tool in damp or wet conditions. Keep the work area well lit (250-300 Lux) . Do not use the tool where there is a risk of causing fire or explosion, [e.g. in](e.g. in) the presence of flammable liquids and gases. 3 Keep c hildren away Do not allow children, visitors or animals to come near the work area or to touch the tool or the mains cable. 4 Dress properly Do not wear loose clothing or jewellery, as these can be caught in moving parts. Wear protective hair covering to keep long hair out of the way. When working outdoors, preferably wear suitable gloves and non-slip footwear. 5 Personal protection Always use safety glasses. Use a face or dust mask wh

FAQs

What are the main technical specifications provided for the DEWALT rotary hammer models?

The manual lists voltage, input power, no-load and load speeds, impact energy, drilling ranges, chisel positions, core drilling capacity, tool holder type, collar diameter, and weight for D251 12(K), D25113K, D25114K, and D25213K.

What sound and vibration values are included?

It provides sound pressure LpA and acoustic power LWA values by model, plus weighted root mean square acceleration values according to EN 50144, and advises hearing protection.

What key safety instructions must be followed before and during operation?

The manual emphasizes reading the instructions carefully, keeping the work area clean and well lit, using protective eyewear and hearing protection, avoiding electrical shock by preventing contact with earthed surfaces, securing the workpiece, using dust extraction equipment when available, and checking the tool and mains cable for damage before use.

Oct 23, 2026

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