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Samantha SandersSep 12, 2025
What size air line for Minnich A-1C?
- DDerek PollardSep 12, 2025
If the Minnich Drill runs slowly or drills ineffectively, and you suspect the air line is too small, use the following supply line sizes for drilling: A-1 single drill 3/4", A-2 two drills 1-1/4", A-3 & A-4 three & four drills 1-1/2", A-5 five drills 2".


