Button hole knives for Reece S356N are replacement buttonhole machine blades used on Reece S1, S2, and S3 machines, and the part is commonly sold as S356N with several size variants. Common listings show sizes such as 1/8", 1/4", 3/8", 1/2", 3/4", 1", and 1-3/8", so the exact hole size matters when ordering.sewingpartsonline+4

Fit and sizes

• Compatible machines: Reece S1, S2, S3, and Juki MBH-180 in some listings.

• Part number: S356N.bobbinusa+2

• Available sizes: 1/8", 1/4", 11/16", 3/8", 1/2", 3/4", 1", 1-3/8".

• Example matches: 13 mm, 19 mm, 25 mm, 35 mm, and 1/2" versions.

Replacement names

You may also see the same item listed as buttonhole knife, button hole knife, or knife for Reece S1/S2/S3 buttonhole sewing machines. One source also lists an alternate part number set for S356N: 20.0356.1.050 / 20-0356-1-050 / 2003561050.

Practical ordering note

The safest way to order is by machine model plus hole size, because the S356N family has multiple sizes that are not interchangeable. If you need the exact blade for your machine, the easiest check is the size stamped on the old knife or the buttonhole length you’re sewing.