Easy to Carry:The size of this ruler is small,so it is easy to carry. High accuracy:The feeler gauge ruler has high accuracy,widely used in the field of taper and welding measurement. Stainless Steel:This feeler gauge is made of high quality stainless steel,which is and rust-resistant. Convenient to Use:Simple structure,fine workmanship,convenient to use. Clear:This tapered ruler has been finely ground and the marking scale is engraved very clearly for easy reading.