Gun Drilling - Deep Hole Drilling Service
Our drilling machines which are BTA machine technology and experience enable us to meet even the most difficult requirements with unsurpassed precision, quality and delivery. Unlike traditional gun drilling, BTA drilling uses an internal chip evacuation cutting tool to produce a hole with high depth to diameter ratio, typically higher than 20 X diameter ratio. The drill itself has an internal bore forcing high volume coolant down the inside of the drill, allowing chips to quickly be removed through the inside of the drill and ultimately evacuated out the tube that the where drill head is held. Our drilling tools and machines have a range of 0.750" to 5.250" diameter and a drill depth up to 12’ long 24’ if drilled from both ends.
While some deep drilling operations can be done on CNC machines, this can result in limited range to drilling depth being the primary constraint. To assure optimal results, we leverage the strengths of dedicated drilling machines that are purpose-built to drill a range of diameters to long depths with extremely tight diameter and straightness tolerances. We have deep experience in working with a wide range of materials, including steel, non-magnetics, inconels, aircraft grade aluminum and titanium. We also have the capability to drill through blind, concentric and eccentric holes. Hole drift is minimized by counter rotating the part in the opposite direction. What separates us from the competition is our experience and customer service.
Solmet DEEP HOLE Drilling Capabilities
| Short Single End Drilling | ||
| Min OD | 3.5 | 1.75 |
| Max OD | 13 | 7.25 |
| Min ID | 2 | 0.75 |
| Max ID | 6 | 2.625 |
| Min length | 20 | 11.5 |
| Max length | 60 | 50 |
| Material capability | all | all |
| Max weight (lbs.) | 5000 | 5000 |
| Max RPM | 389 | 565 |
| Hone | |
| Min OD | 2 |
| Max OD | 17.5 |
| Min ID | 1.75 |
| Max ID | 13.313 |
| Min length | 18 |
| Max length | 378 |
| Material capability | all |
| Max weight (lbs.) | 15000 |
| Max RPM | 242 |
| Lathe | |
| Compound | Single |
| Min OD | 3.5 |
| Max OD | 12.375 |
| Max OD through spindle | 12 |
| Std. Tolerance +0.060"/-0.0" | 16.5 |
| Min length | 24 |
| Max length | 204 |
| Material capability | all |
| Max length | 408 |
| Max weight (lbs.) | 10000 |
| Max RPM | 418 |
| Pull Bore | |
| Min OD | 3 |
| Max OD | 16.5 |
| Min ID | 2.25 |
| Max ID | 13.375 |
| Min length | 52 |
| Max length | 408 |
| Material capability | all |
| Max weight (lbs.) | 5000 |
| Max RPM | 250 |
| Straightening | |
| Min OD | 2.5 |
| Max OD | 8 |
| Min length | 72 |
| Max length | 420 |
| Material capability | all |
| Max weight (lbs.) | 15000 |
| Single & Double End Drilling | |||
| Min OD | 3 | 2 | 1.75 |
| Max OD Chuck to Chuck | 12.5 | 9 | 5 |
| Max OD with sleeves | 9.5 | 7.25 | 5 |
| Min ID | 2 | 0.75 | 5 |
| Max ID | 5.35 | 2.5 | 2.25 |
| Min Length | 54 | 44 | 44 |
| Max Length Chuck to Chuck | 120 | 108 | 84 |
| Max length both ends (double end) | 288 | 252 | 252 |
| Max length one end only 1"-3/4" | 120 | 84 | 84 |
| Max length one end only >1" dia | 144 | 132 | 132 |
| Material capability | all | all | all |
| Max RPM | 602 | 1200 | 1840 |
| Max weight (lbs.) | 10000 | 1200 | 1841 |
