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Metric Diamond Groove Drill Bushings


Key Features:

  • Diameters from 1.20mm to 18mm
  • ID Hardness to 60-65 HRC
  • ID Radius improves drill entry
  • OD Diamond knurling
  • Feature one or two grooves.
  • Castable bushings
WHEN ORDERING STATE: Quantity, Symbol and Bore Size. Example: 6, DGM-6-12-3MM


Metric Diamond Groove Drill Bushings – DGM TYPE

Metric Diamond Groove Drill Bushings are fully diamond knurled and known as DGM Type Bushings. The ‘DGM Type’ drill bushing is designed to be cast-in to the fixture or mold. Popular in the resin and composite industries. Composite resin runs through the grooves to lock the bushing in place. The combination of the groove(s) and the diamond knurling form a strong resistance to axial and rotational movement. Serrated or diamond knurled bushings do not feature a ground outside diameter, whilst this makes them more economical, the bushing must be accurately located using the bore. Alignment pins can be used where appropriate in a fixture.

The Diamond Groove drill bushing is available in 11 different OD sizes as standard. These range from 5mm to 26mm. There is a choice of 9 standard drill bushing lengths. These vary depending on the OD size and range from 6mm to 36mm. All bushings are hardened to 60-65 HRC for maximum life.

The Boneham brand of bushings is synonymous with quality and a global leader in drill bushing manufacture. With large inventories in the UK and USA, as well as special variations and to print. Boneham can provide precision solutions to customer requirement.

Boneham bushings are manufactured to ANSI and ISO standards. With a culture of close adherence to strict quality procedures. Boneham ensures your customers receive a bushing with superior attention to limits and concentricity.

Boneham Metal Products Inc. is represented throughout the US by manufacturers’ representatives, distributors and catalog houses. For more information, download the PDF catalog page. Alternatively, call the technical sales team in New Jersey. Our team will advise you on the best possible solution for your manufacturing needs. Catalogs are available on request and through authorised distributors.