| Gundrilling | Spade Drilling | Ejector Drilling | Trepan Drilling | Honing | |
| Diameter | .125" to 2.0" | 2.0" to 6.0" | 1.25" to 2.25" | 2.0" to 9.0" | 1.375" to 10.0" |
| 3.175 to 50.8 mm | 50.8 to 152.4 mm | 31.75 to 57.0 mm | 50.8 to 228.6 mm | 35.0 to 254.0 mm | |
| Diameter Tolerance | +\- .003" | +\- .005" | +\- .003" | +\- .030" | +\- .003" |
| +\- 0.076" | +\- 0.127" | +\- 0.076" | +\- 0.762" | +\- 0.076" | |
| Maximum Length | 250" | 144" | 36" | 120" | 120" |
| 6350 mm | 3658 mm | 914 mm | 3048 mm | 3048 mm | |
| Straight Per Inch | .001" | .001" | .001" | .001" | N/A |
| 0.025 mm | 0.025 mm | 0.025 mm | 0.025 mm | N/A |
Deep Hole Drilling
614 Grable St., Rockford, IL 61109
Call us at 815.398.0313
