Crocodile Sawblade Cut 5/0. This blade is 0..20mm thick (0.008in), there are 28 teeth per cm ( 71 per inch) and the depth is 0.4mm ( 0.0157in). Made in Switzerland of the finest steel by the leading manufacturer. Crocodile are round backed with precisely milled teeth for accuracy and ease of cutting. Combined with the perfect temper, crocodile blades will perform upto your most demanding requirements. Sold by the bundle of twelve single blades.