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Comparison Arsenal P-950SP vs Arsenal P-950

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Arsenal P-950SP
Arsenal P-950
Arsenal P-950SPArsenal P-950
from $47.16 up to $70.40
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from $42.76 up to $62.89
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Operating modes
hammer drilling
drilling only
chiselling (demolition hammer)
hammer drilling
drilling only
chiselling (demolition hammer)
Specs
Power consumption950 W950 W
Impact energy2.8 J2.8 J
Number of thrusts5500 bpm5500 bpm
Rotation speed1250 rpm1250 rpm
Reversebrushbrush
Motor locationhorizontalhorizontal
Chuck
Chuck type
SDS+
keyless
 
SDS+
 
keyed
Wood drilling max. 30 mm30 mm
Metal drilling max. 13 mm13 mm
Concrete drilling max. 26 mm26 mm
Features
Functions
power button lock
power button lock
General
Power sourcemains (230 V)mains (230 V)
In box
additional handle
depth gauge
case (bag)
additional handle
depth gauge
case (bag)
Weight3 kg3 kg
Added to E-Catalogmarch 2014march 2014

Chuck type

The type of cartridge used in a rotary hammer to hold a working tool.

SD+. Abbreviation for it. "Steck-Dreh-Sitzt" — "insert-turn-fixed." Today's most common rotary hammer chuck, used in low and medium power models. It has a 10mm diameter shank with 4 slots and accepts tools from 4 to 26mm in diameter and 110mm to 1000mm in length. The advantages of SDS + are the reliability of fastening and convenience when changing tools — it does not require additional devices such as keys. The main drawback is the significant beating of the tool during rotation, due to which such a cartridge is very poorly suitable for drilling.

SDS Max. Modification of the SDS + cartridge (see above), intended for use in powerful professional models. It has a shank diameter of 18 mm and allows the use of tools with a diameter of up to 55 mm; otherwise similar to SDS+.

SDS-Quick. A variation of the SDS cartridge (see above), in the shank under which protrusions are used instead of grooves. It is also possible to install tools with 1/4" hex shanks in such a chuck. The most common tool diameter for SDS-Quick is 4-10 mm. This chuck is used relatively rarely.

Quick release. Chuck for holding drills and other tools used in drilling holes. The design is similar to those used in electric drills — it has 3 cams, it is designed for a too...l with a cylindrical shank without grooves, and hand force is enough to install / remove the tool. Such a cartridge is devoid of the main drawback of SDS — beats during rotation; this allows you to use the rotary hammer for drilling with good quality. On the other hand, it is much worse for chiselling than SDS. Therefore, keyless chucks are usually supplied as an accessory and are installed instead of the standard SDS chuck.

— Key. The presence of a special key cartridge in the delivery set of the rotary hammer, usually in addition to the standard SDS (see above). In terms of mounting design, this chuck is similar to the keyless chuck (see above) and is also designed for use in drilling. Its main difference lies in the method of installing / removing the tool: you can’t do this with your bare hands, you must use a special key to compress / unclench the cams. Such a system is somewhat more reliable than a quick-clamping system, but much less convenient: changing a tool takes a lot of time, and the key can be lost.