The X-Lock system is a combination of patented
tool mount and accessory designs that provide
the operator with fast accessory changes. Avail-
able on select Bosch angle grinders, X-Lock al-
lows tool free installation and removal of grind-
er accessories (grinding, cut-off wheels, wire
brushes, sanding discs, etc.). The X-Lock system
is a replacement for the traditional method of
attaching grinder accessories.
Traditional grinders have 5/ 8"-11 threaded
spindles that require a nut and backing flange to
hold the accessory in place. To replace an acces-
sory, a wrench is used to loosen or tighten the
nut. X-Lock equipped grinders have a tool free
interface system, eliminating the spindle, back-
ing flange and lock nut.
The X-Lock interface has a tool component – X-
Lock Accessory Mount, and an accessory com-
ponent – typically an Accessory X-Lock Mounting
Hub. The two components have keyed alignment
contours, which help to ensure correct assem-
bly of accessory to tool.
The X-Lock Accessory Mount consists of a
round base, clamping height gages and locking
mechanism, which activates the clamping tabs.
X-Lock equipped grinders can only use X-Lock
accessories since the specially designed X-Lock
Mounting Hub matches the contours of the X-
Lock Accessory Mount on the tool (See figure
3). However, select X-Lock accessories are back-
ward compatible with the traditional threaded
spindle design.
Attachment of the X-Lock accessory to the X-
Lock Accessory Mount on the grinder requires
alignment of the mounting hub with the acces-
sory mounting mechanism. Once the Accessory
X-Lock Mounting Hub is aligned, and pressed
against the base of the X-Lock Accessory Mount,
the locking mechanism is activated. This causes
the two opposing clamping tabs to lock the ac-
cessory to the grinder. An audible 'click' in com-
bination with the alignment of the flat surface
of the Accessory X-Lock Mounting hub with the
Clamping Height Gages means the accessory is
firmly attached to the tool. To remove the acces-
sory, a lever on the grinder gearhead is actuated
which will release the locking tabs, allowing the
accessory to be detached from the tool. (Fig. 4)
160992A5K0 GWX18V-13CP 202206.indd 14
Basic X-Lock Operation
Fig. 3
Mounting Hub
Height Gage
Fig. 4
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Accessory
X-Lock
X-Lock
Accessory
Mount
Clamping
Clamping Tab
Base
Clamping Tab
Clamping
Height Gage
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