Press release #Power Tools

The easiest accessory-change system for angle grinders: X-Lock – a world first from Bosch for professionals


Change accessories quickly, easily and reliably

  • Convenient: Minimum-effort tool-free system without parts that can get lost
  • Efficient: Quick accessory changes and less reworking
  • Extensive: Angle grinder and accessories for every application
Manuel Roj

Manuel Roj


One click is all you need: With X-Lock, Bosch is revolutionizing the way angle grinder accessories are changed and launching the simplest accessory-change system on the market. Instead of following several steps which require a great deal of effort and parts that can get lost, such as tensioning nuts, flanges and keys, you can now change your accessories in five seconds ‒ up to five times faster ‒ and much more easily: Position the wheel in the X-Lock mount, click it in – and you’re good to go! The clicking sound lets you know that the accessory is correctly mounted on the device and is locked in reliably. To change a disc, simply unlock it using the lever and remove it. Seized-up nuts after the disc has jammed are a thing of the past. There are twelve small X-Lock angle grinders available: eight corded models from 900 to 1,900 watts and four cordless models with 18 volt batteries and common disc diameters of 115 and 125 millimeters. This range covers all the areas of application for metal-, stone-, and concrete-processing trades, plumbers and tilers. Cutting, grinding, deburring, removing rust, roughing, polishing: Thanks to X-Lock, the required accessories can always be changed quickly, easily and reliably – without a wrench, and even while wearing gloves. Bosch has already set a number of milestones in quick-change systems, with the SDS plus and SDS max for rotary hammers, the T-shaft for jigsaws and the Starlock for multi-cutters in cooperation with Fein.

One system, many benefits – work more efficiently with X-Lock

The X-lock system also saves professionals from extensive reworking because it has no tensioning nut. This enables tradespeople to grind at a flat angle without damaging surfaces. Furthermore, X-Lock indicates the accessory's mounting direction and ensures that direction-specific discs, such as diamond cutting discs, are always mounted correctly.

Extensive range of accessories for every application

With more than 130 X-Lock accessories, Bosch is offering tradespeople a com-plete range right from the start. For metal processing, they can choose from a broad selection of cutting, roughing, fiber, SCM and flap discs, as well as cup and round brushes. For stone, concrete or tile processing, diamond cutting discs, diamond dry core drills and diamond milling cutters are available. In addition, the “Carbide Multi Wheel” carbide cutting disk is available for cutting wood containing nails, plastic, composite or drywall construction materials. When switching to the X-Lock system, there is no need for duplicate stock: Almost all X-Lock accessories are backwardly compatible and can be used on angle grinders with conventional clamping systems. The exception is accessories, which previously had an integrated thread, such as diamond dry core drills or cup and round brushes.

Increased occupational health and safety

Angle grinders with X-Lock systems offer tradespeople high user protection. That includes sensor-based functions such as “Drop Control” and “KickBack Control”. The “Drop Control” stops the motor as soon as the tool hits the floor after it falls, while the “KickBack Control” stops the motor if the angle grinder is suddenly blocked, for example if the wheel jams. Some X-Lock models also have a deadman’s switch and “X Brake”. The brake function ensures that the disk comes to a complete stop within one second of the tool stopping. There are also versions with soft start, restart protection and an auxiliary handle with vibration damping.

The Bosch angle grinders with the X-Lock system and the extensive range of accessories will be on the market from May 2019, and the GWX 17-150 Professional from October. All prices are recommended retail prices excluding VAT.

Corded angle grinders
900 – 1 900 watts
KickBack ControlVibration ControlSpeed
PackagingRRP excl. VAT
GWX 9-115 S Professional XXCarrying case€150
GWX 9-125 S Professional XXCardboard box€140
GWX 10-125 Professional   Cardboard box€120
GWX 13-125 S ProfessionalXXXCardboard box€207
GWX 14-125 Professional   Cardboard box€150
GWX 17-125 S ProfessionalXXXCardboard box€234
GWX 17-150 ProfessionalXX Cardboard box€254
GWX 19-125 S ProfessionalXXXCardboard box€260

Cordless angle grinders
18 volts
KickBack Control, Drop Control, Vibration Control, X-BrakeSpeed
Deadman's switchPackagingRRP excl. VAT
GWX 18V-10 C ProfessionalX  L-Boxx€309
GWX 18V-10 SC ProfessionalXX L-Boxx€345
GWX 18V-10 PC ProfessionalX XL-Boxx€309
GWX 18V-10 PSC ProfessionalXXXL-Boxx€345

X-Lock Accessories RRP excl. VAT
Metal processing, e.g.
  • X-Lock Expert for Metal & Inox Cutting Disc, diameter 125 x 1 x 22.23 mm
  • X-Lock Expert for Metal Roughing Disc, diameter 125 x 6 mm x 22.23 mm
  • X-Lock Expert for Metal Fiber Disc, diameter 125 mm, G 60, R444
  • X-Lock Best for Metal Flap Disc, diameter 125 x 22.23 mm, G 40, X571
  • X-Lock Cup Brush, knotted, diameter 75 mm, steel, 0.5 mm




Processing stone, concrete, tiles, e.g.
  • X-Lock Standard for Universal Diamond Cutting Disc,
    diameter 125 x 1.6 x 10 x 22.23 mm
  • X-Lock Best for Ceramic Extraclean Turbo Diamond Cutting Disc,
    diameter 125 x 1.4 x 7 x 22.23 mm
  • X-Lock Dry Speed Diamond Dry Core Drill, diameter 68 mm
  • X-Lock Diamond Burr, diameter 20 mm



Accessories for special applications, e.g.
  • X-Lock Carbide Multi Wheel, diameter 125 x 1 x 22.23 mm
  • X-Lock Multi Material Cutting Wheel, diameter 125 x 1 x 22.23 mm


Subject to change.

The Robert Bosch Power Tools GmbH, a division of the Bosch Group, is one of the world’s leading providers for power tools, garden tools, power tool accessories and measuring tools. In 2023, its roughly 19,500 associates generated sales of 5.6 billion euros, about 90 percent of which outside of Germany. With brands such as Bosch and Dremel, the division stands for customer focus and great engineering progress. The core success factors are innovative strength and pace of innovation. In 2024, Bosch Power Tools will again launch more than 100 new products onto the market in its four business segments power tools, outdoor and garden tools, accessories and measuring tools.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

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