SPECIFICATIONS Material: Tungsten Cobalt Alloy Model Number: cove box bit Overall Length: 40-75mm Package Size: 15cm x 15cm x 5cm (5.91in x 5.91in x 1.97in) Package Weight: 0.1kg (0.22lb.) SHANK: 6.35mm 12.7mm Type: Woodruff Keyseat Milling Cutters Unit Type: piece material: 45# Tungsten steel quality: AA Industrial Grade suggested router speeds: 12000-24000RPM use: Solid wood plywood MDF planer   Product description   Specification: Shank diameter:  12.7mm  (1/2")  6.35mm(1/4") Total length:  40-75mm Brand Name: BoboaldoMaterial: Tungsten steel     Safety instructions: 1. The bladed product is not use for people under 18 years.2. The item is only use for industrial cutting  not hazardous article.Package include:       1pcs  1/2" 1/4"  Shank Router bits   Boboaldo 1pcs 1/2 1/4 Shank Double Edging Router Bits for wood Industrial Grade cove box bit Woodworking endmill miiling cutter      

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