Feature:
100% Brand New & High Quality Aftermarket Product;
Perfect Direct Replacement for A More Expensive Part;
Excellent Performance of Securely Gripping & Holding onto Rough, Unshaped Workpieces;
Premium Material of Steel & Improved Packing Way Keep It from Delivey Damage.

Size Specifications:
Length (U-1): 108mm/4.252"
Width (U-2): 50mm/1.969"
Height (U-3): 67mm/2.638"
Groove Width (U-4): 21mm/0.827"
Groove Depth (U-5): 4mm/0.157"
Bottom Step Length (U-6): 49mm/1.929"
Center to Centre (U-7): 30mm/1.181"
Middle Step Length (U-8): 20mm/0.787"
Top 2 Steps Height (U-9): 16mm/0.63"
Thread Size (U-10): M16X2P
Serration Pitch: 1.5x60°
3Pcs Set Weight: 3.5kg/7.72lbs

Package List:
‎3x Lathe Hard Jaws for 12" Chuck
Instruction is not included. Professional installation is recommended.