Feature: 1. COMFORTABLE AND DURABLE: The dowel maker jig tool is made of excellent aluminum alloy materials and has a long service life, giving you a good user experience and making your work more comfortable 2. SMOOTH CUTTING: Dowel maker jig use a disposable carbide arc blade for a smoother cutting experience. When the blade becomes dull can be incisive as new after rotated, and a block of blade can be rotated 4 times 3. EASY TO OPERATE: Adjustable dowel maker jig come with 8 different diameter turning holes, loosen the screw and rotate the red tool holder to the desired diameter, relock the screw and make immediately 4. CORROSION RESISTANT TREATMENT: Carbide inserts dowel maker adopt anodic oxidation treatment to enhance hardness, wear resistance and corrosion resistance 5. EXCELLENT PERFORMANCE: Carbide inserts dowel maker is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification: Item Type: Dowel Maker Jig Kit Material: Aluminum alloy Color: Black and red Aperture: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4(in) Surface Treatment: Anodizing treatment Blade Material: Expendable carbide blade Blade Specifications: 15x15x2.5 30°R150 . Package List: 1 x Adjustable Electric Drill Dowel Maker Jig Tool1 x Blade Wrench1 x Adjusting Wrench3 x Set Screw