Silverline - 12PCE 1/2INCH TCT ROUTER BIT SET - 763555 High quality 1/2" hardened steel body. Perfectly ground cutting geometry. Extra sharp cutting edges. Low vibration two flute for superior cutting quality. Contents: Straight Bit 12.7x6mm, 12.7x12mm, 12.7x16mm, V Groove Bit 12.7x12.7mm, Dovetail Bit 12.7x12.7mm, Chamfer Bit 12.7x32mm, Bearing Flush Trim Bit 12.7x12mm, Rounding Over Bit 12.7xR6.3mm, 12.7xR9.5mm, Rounding Box Bit 12.7xR6.3mm, Cove Box Bit 12.7xR6.3mm & Roman Ogee Bit 12.7xR4mm.