Mast Coupler - used to mate a 2-7/8" Tube to a 2" Chrome-moly tube and retain full yield strength of both tubes.

PE Certified for your safety and reliability

1. Order the Mast coupler, it comes with bolts and hardware

2. Order a 2-7/8" OD DOM mast in the length you wish, make it as long a possible 20-22 feet

3. Order a 4130 Chrome molly mast in the length you wish + 2 feet to insert into the coupler

2 7/8" OD X .25" wall 1026 DOM (87k psi)  mast has a Yield Moment of 108,448 in-lbs

2 " OD X .25 wall  4130 chrome Moly ( 100k psi) mast has a Yield Moment of 53,689 in-lbs

2" OD X .25" wall 1026 DOM (87k psi)  mast has a Yield Moment of 46,710 in-lbs

Each Mast is tested, for chemical, metallurgical, and mechanical properties. A certificate verifies the strength of your mast.

A typical certificate is scanned and shown below: