Dovetail bits, two flutes, 6.35mm(1/4") shank with shank mounted bearing guide. Black Router Bit - Cutting Angle: 10 ;Cut length:12.7mm( 1/2"); Cutting depth:12.7mm(1/2"); Overall length: 59mm(2-5/16"); Yellow Router Bit - Cutting length: 15.9mm(5/8") ; Cutting depth: 14.3mm(9/16"); Overall length: 63.5mm(2-1/2"); Compatible with common dovetail jigs, fence systems or automatic CNC routers. Cutting all composite materials, plywood, hardwood and softwood. Product Description This section for all kinds of cabinets, door frames, picture frames, ceiling lines, corner lines of the various flower line processing is the necessary tool for decoration, the blade for the engraving machine, the edge machine, etc. Features: Compatible with the Popular dovetail jigs, these bits produce smooth, intricate dovetail joints. Two-flute, 1/4" shank with shank-mounted bearing guide. Strong hardened steel body with anti-kickback design. Very durable, can be used for the most rigorous industrial applications. Precise cuts , smooth and detailed, ideal for projects of any level of complexity. Exceptional abrasion resistance and high strength for extended life. Caution: ;This product is sharp, so keep away from children. In order to prolong the service life of this product, please use it correctly. Please put it in a dry and ventilated position when using it. Specification: Quantity: 2pcs Material: Cemented Carbide Color: Silver & Yellow & Black Bearing: Totally Enclosed & Lubricated Black Size: Stem Diameter: 6.35mm(1/4") Cut Length: 12.7mm(1/2") Cut Depth: 12.7mm 1/2") Total Length : 58.76mm(2-5/16") Bearing Diameter: 12.7mm(1/2") Yellow Size: &nbsp ;Shank Diameter: 6.35mm(1/4") Cut Length: 15.9mm(5/8") Cut Depth: 14.28mm (9/16") Total Length: 63.5mm(2-1/2") Bearing Diameter: 12.7mm (1/2") Contents: 2 Set Dovetail Bearing Router Set