Electroplated Diamond Countersinks & Drill Countersink Tools

Electroplated Diamond Countersinks & Drill Countersink Tools from DK Holdings deliver precision and durability for cutting countersink recesses in GRP, carbon fibre, laminates, plastics, and composite materials. Engineered to your specifications, these countersinks help you achieve clean, burr‑free entrances for fasteners, ledges, or finishing edges.

We offer four types:

• Type A: Both the drill and the countersink are diamond electroplated, available in 4‑12 mm diameters.

• Type B: Only the countersink has the diamond electroplating; drills use standard masonry options, available 5.5‑9 mm.

• Type C: A plain pilot complements the electroplated countersink to aid central alignment.

• Type D: Plain point tip with diamond countersink only.

Grades currently stocked are 36/44 and 44/60, with other grades and custom sizes available upon request.

Whether you need a countersink for routine finishing work or specialised drill‑countersink combos, we can supply tools tailored to your needs.

The electroplated diamond layer ensures clean cutting action, minimal burrs, and extended life compared to standard tools.

These tools reduce the need for rework and enable faster, more accurate installations in production, fabrication, and composite work.

With unmatched durability, they perform consistently even under repeated usage in harsh materials.

At DK Holdings, we maintain stock for the most popular types and sizes for fast dispatch.

Custom orders are welcome from unusual diameters, unique pilot designs, to custom grit or plating.

We guarantee precision, quality, and reliable performance with every tool.

If you are looking for professional diamond tools or high‐quality countersink blades / drill countersinks, Electroplated Diamond Countersinks from DK Holdings offer performance, precision, and value. 

OPTIONS:
Grades – 36/44, 44/60

NOTE:
Other sizes and grades are available on request.