At TMB Precision Engineering, we provide high-precision deep hole drilling services tailored to meet the demanding specifications of modern industry.  With over a decade of experience in advanced drilling processes, we are a trusted partner for manufacturers requiring accuracy, repeatability and tight tolerances across a wide range of materials including metals, hardened alloys, plastics and composite materials.

Deep hole drilling, also known as gun-drilling, is specifically designed to produce holes with a depth-to-diameter ratio greater than 10:1—far beyond the reach of conventional drilling methods. Our technology enables us to drill holes with exceptional straightness, surface finish and concentricity, even at extreme depths.

Key technical capabilities include:

• Hole diameters from 3mm upwards, depending on material and depth
• Depths exceeding 40x diameter, depending on component geometry
• Tolerances typically within H7-H9, with excellent surface finishes
• Coolant-fed tooling to improve chip evacuation, cooling and process stability

Our deep hole drilling solutions are commonly used for:

• Tools, dies and cooling channels.
• Fuel, oil, and hydraulic systems in aerospace and automotive components
• Medical and defence parts requiring deep, narrow holes
• Precision venting or alignment holes in high-precision assemblies

Whether you need a single complex component or high-volume precision drilling, TMB Precision Engineering is your trusted partner.  Delivering deep hole drilling solutions that combine precision, reliability and technical excellence.