Our Services Precision Honing & Lapping Tube Honing up to 36 inch lengthsCylinder HoningBlind HolesMultiple holes in line Keyway slotted holesTolerances to .000020″Surface finish to 2RMS 10 Sunnen Hone MachinesCustom Tube Honing Machine Gaging 3 Universal Gage Digital Air/Electronic Comparator Model DR-1 Federal Air GagingSunnen P800 Bore GagesSunnen Small Bore GagesPlug GagesSure Tronic Surface TesterSunnen Dial Bore GagesAccuracy Down to .000005″ Industries Served DefenceHydrolicsMedicalResearchAerospace ECT.