From G5:

MONTEC Broadhead The Montec TM is a go anywhere. no-nonsense broadhead, designed for the avid, dedicated archer who demands the best. The solid one-piece stainless steel construction is the foundation that gives this head abilities that no one thought possible in a single design even with repeated use. Satisfying the needs for accuracy, durability, and penetration- this broadhead does it all. STATS: Patented under Patent No’s 6,290,903 and 6,595,881. Other patents pending.

Product Features: Grain Wghts: 85, 100, 125, & 140 Cutting Dia.: 1-1/8" (85gr. is 1") (100gr. is 1-1/16") Straightness: +/-.002 Material: Stainless steel Design: One-Piece "Head to Thread" Construction