Hole Saw Arbor, Quick Change, 1.25 to 6-In. National Mfg. SharkBite Max female adapters are

SharkBite Max female adapters are designed transition from CTS pipe to  a MNPT threaded connection

Ceramic fin elements

Manufactured From Hot Rolled Steel

Compatible with PEX and PE-RT pipe

Dual Wall N-12 corrugated pipe also provides superior corrosion and abrasion resistance

Hole Saw Arbor, Quick Change, 1.25 to 6-In. National Mfg. SharkBite Max female adapters areSnap back hole saw arbor has quick change feature. Drive off pins, not threads to prevent the threads from stripping, prevents hole saw from locking on arbor. No Adaptor Required. Arbor threads directly onto hole saw. No tools needed. Fits 20L 96L or 1 1 4" To 6", For 3 8" or larger hex shank.