Silverline - 10PK BAYONET FITTING JIGSAW BLADES (ST118A) - 377497 Very nice quality jigsaw blades for the most popular cutting applications. Available with the standard bayonet type fitting they will fit virtually all new machines including our own. Packs of 10 blades for less than others want for 5, but don't be put off by the low price, we are confident the quality will really impress. Tooth Form: Wavy Set & Milled, Material: HSS, Desc. ST118A, Pitch: 1.2mm, For Cutting: Metal 1.5-3mm, Type of Cut: Straight Medium.