Silver Aluminum Alloy T-Jig 30 x 12.8mm for Table Saw Router Woodworking Table. Specifications: Material: Aluminum alloy. Color: Silver. Length: 300mm、400mm、500mm. External dimensions: 30 x 12.8mm. Features: 1. Perfect for woodworking, T-type, a very practical and useful tool. 2. Made of aluminum alloy, durable and easy to use. 3. For quick action clamp. Package includes: 1 x T-track.