30 Degree Vertical Ladder Type Internal Thread Blade 22VNR 27 3 4 5 6 7 8 9 10 12 14 TR
This 30° vertical trapezoidal internal threading insert is available in 22VNR and 27VNR specifications, covering TR pitches from 3 up to 14. The vertical mounting design delivers enhanced cutting rigidity and impact resistance, ideal for heavy-duty internal thread machining on carbon and alloy steel.
The precision-ground 30° trapezoidal thread profile ensures consistent dimensional accuracy and smooth flank surface finish. Premium coated carbide substrate provides excellent wear resistance, with optimized chip geometry ensuring stable chip evacuation under heavy cutting loads.
Fully compatible with standard vertical threading tool holders, these inserts support quick indexing to minimize machine downtime. They are widely applied in lifting machinery, power transmission and general equipment industries, offering a cost-effective heavy-duty threading solution.
