Tool Grinders

Tool grinders for sharp, long-lasting tools

A tool grinder restores the original cutting quality of your machining tools. Instead of replacing blunt tools, you re-grind them and extend their service life considerably. This lowers tooling costs and keeps the machining quality of your workpieces consistent. KNUTH supplies tool grinders for production, toolmaking, maintenance and technical training, including demanding mining and heavy engineering environments.

Which tools can be ground?

Tool grinders handle a broad range of cutting tools. Typical applications include:

• Milling cutters in HSS and carbide
• Drills and step drills
• Taps and reamers
• Countersinks as well as step and form tools
• Lathe tools and gravers
• Saw blades and further cutting tools

Precise re-grinding of the cutting edges makes the tools work cleanly again and helps you avoid scrap caused by blunt edges.

Types of tool grinder

Different designs suit different workshops and tasks:

• Compact bench and workshop machines for small workshops, maintenance and training. An affordable entry point, ready to use quickly.
• Universal tool grinders for changing tasks. With internal and external grinding attachments they cover tool sharpening and light cylindrical and surface grinding.
• CNC and programmable tool grinders for repeat batches and complex tool geometries with high repeatability.

Which design fits depends on your workpieces, batch sizes and the experience of your operators.

Grinding wheels: CBN, diamond and corundum

The grinding wheel is matched to the tool material:

• CBN (cubic boron nitride): for HSS and other hardened steels.
• Diamond: for carbide and very hard materials.
• Corundum: the versatile classic for many standard tasks.

The right wheel ensures clean cutting edges, low wear and economical grinding.

Manual, universal or CNC: which tool grinder fits?

For individual repairs, maintenance and training, a compact, manually operated tool grinder offers the most affordable entry. If you sharpen many different tools, a universal machine is more flexible. For repeat batches and consistent precision, programmable CNC cycles pay off. If you are unsure, a KNUTH specialist matches the machine to your tools, your materials such as HSS or carbide, and your batch sizes.

Why KNUTH

KNUTH is an established supplier of machine tools with a broad grinding range. You get quality tested to European standards, a well-considered product range and personal advice. Robust machines suit demanding conditions in mining and heavy engineering, backed by local service partners across the region, along with matching accessories and abrasives.

Service: commissioning, training and spare parts

We support you with installation and commissioning of your tool grinder and train your team on its operation. Local service partners and our repair service cover the KNUTH range. The spare parts supply ships most components quickly. You will find details on start-up services and the repair service on the service pages.

Related grinding categories

Besides tool grinders, KNUTH offers further grinding machines for metalworking. For deburring and surface work, belt and disc sanders are suitable. For surface and cylindrical grinding, consider conventional grinding machines. The grinding machines category gives an overview.

Request a tool grinder from KNUTH

Would you like to know which tool grinder suits your tools? Request a non-binding quote. Our specialists advise you on the machine, grinding wheels and accessories and usually get back to you within one working day.

Further Machine Categories at a Glance

Here is an overview of our machine range. Select a category to learn more about individual machines and their technical data.