Diamond Electroplated Counterbore Tools

Diamond Electroplated Counterbores from DK Holdings are precision routing and trimming tools engineered for composite and light stone materials. These diamond tooling counterbores produce clean recesses for bolts, fasteners, or fixtures, with diameters ranging from 10 mm up to 70 mm. They are available in two diamond grit grades: 36/44 for more aggressive material removal, and 44/60 for finer finish and smoother edges.

These tools are designed for use on SE20 trimming and SE50 routing machines for holes up to 6 mm, and for diameters over 6 mm on portable or fixed drilling machines or static routing machines.

Note: counterbores are fixed size the “S” diameter (spindle or shank size) and the matching “D” diameter (cutting diameter) must be ordered to suit your application. Custom sizes can also be manufactured to special requirements. 

Constructed with electroplated diamond coating, these counterbores benefit from extremely sharp diamond edges that perform well under load while resisting wear. The electroplating ensures minimal heat generation and good durability. Whether you’re working with GRP/FRP composites, laminates, or lighter stone, these tools deliver accurate and clean recesses.

We stock the standard diameter sizes and both grit grades. Bespoke tooling is available for non‑standard diameters, bore sizes, or special specifications. DK Holdings ensures quick lead times and quality control for all custom orders.

For those looking for reliable diamond tooling or searching for diamond blades and counterbores that deliver precision and durability, these Diamond Electroplated Counterbores are an excellent choice.

Contact us today to check availability or get a custom quote.