Use this bit set to make your own cedar strip canoe, hot tub, or lots of other curved shapes. The anti-kickback design helps to ensure your safety when routing. Use both bits for fluting and beading 1/4 In. slats. Bits feature super-strength superior steel bodies, non-stick orange shield coating and cutting edges made of sinter hip hi-density industrial chrome carbide for a long-lasting performance. Not for use on hand-held router. Use them on router tables only. After a test performed by wood magazine, CMT orange bits have been rated the first overall router bits compared to other brands.