Home Telescopic Tubing Pre-Drilled Telescopic Tubing Pre-Drilled Telescoping Round Tubing Alum. Pre-Drilled Telescoping Round Tubing - .110" Wall Products 1.00″ x .110″ Telescoping Round Tube 6005A-T6 (Pre-Drilled) $20.25 – $33.75 Select options 1.25″ x .110″ Telescoping Round Tube 6005A-T6 (Pre-Drilled) $22.95 – $40.50 Select options 1.5″ x .110″ Telescoping Round Tube 6005A-T6 (Pre-Drilled) $25.65 – $47.25 Select options 1.75″ x .110″ Telescoping Round Tube 6005A-T6 (Pre-Drilled) $29.70 – $40.00 Select options 2.00″ x .110″ Telescoping Round Tube 6005A-T6 (Pre-Drilled) $38.43 – $47.94 Select options