Tweed/angle rectangular arch forming & Torquing pliers 13.5cm

The Tweed/angle rectangular arch forming & Torquing pliers 13.5cm measure 135mm in total length and are forged from AISI 420 stainless steel with a satin finish. The jaw assembly uses two wide, parallel flat blades; each 1.5mm thick and fully serrated across the working face, that remain parallel at a 0.020-inch (0.51mm) gap at the standard closing position. This blade-gap geometry matches standard rectangular wire cross-sections, distributing compressive force evenly across the full wire face during torquing. All blade edges carry a beveled profile to prevent wire scoring. Both the straight and angled blade configurations are shown in the two jaw close-up thumbnails in the product image.

The oval arch-loop diagram alongside the jaw profiles confirms this instrument’s dual output: arch forming in the sagittal plane and third-order torque delivery in rectangular wire. The serrated blade surfaces prevent wire rotation during torque application, the step that separates this instrument from smooth-blade arch formers. The box-joint hinge maintains strict blade parallelism under twisting load. The instrument handles square and rectangular wire up to 0.022″ × 0.028″ (0.56mm × 0.71mm). Dental Orthodontic Pliers in this parallel-blade format are fully autoclavable at 134°C.

Orthodontists use the Tweed/angle rectangular arch forming & Torquing pliers 13.5cm during Tweed-Merrifield edgewise treatment, placing first, second, and third-order bends in 0.019″ × 0.025″ and 0.021″ × 0.025″ rectangular stainless steel archwires, and forming oval arch shapes during finishing. Orthodontic Pliers Arch Forming Plier of this serrated parallel-blade type are the standard instrument when torque must be introduced without wire slippage at the blade contact point.

Leader Surgical verifies blade parallelism and serration depth tolerances across every production batch of this instrument, ensuring consistent torque transmission and repeatable arch-forming geometry session after session.

What does “13.5cm” refer to?
This is the total length of the instrument (approximately 5.3 inches), providing a standard size for comfortable handling and adequate leverage during wire bending.