BigChiefLeather Report post Posted January 25, 2012 Looking at getting some new needles. Whats the difference between a 135x16DIA and 135x16TRI? I look at Schmetz website and they look the same to me. One says it is for upholstery and the other luggage. Anyone know if there is a difference? Quote Share this post Link to post Share on other sites
HellfireJack Report post Posted January 25, 2012 One is a diamond shaped tip and the other is triangular shaped. Quote Share this post Link to post Share on other sites
Art Report post Posted January 25, 2012 The Diamond or DIA point is a 4 sided diamond point somewhat elongated. The DIA is good for general harness and saddlery. The TRI point is a small 3 sided triangle point that is generally better for thinner leathers as it starts by punching and slicing, but the hole is enlarged by the shaft after the point. If you have hard, more substantial leather, use the DIA (this should be the exception with the 135x16). It is better to use the TRI if you are using small stitch length (10 or more SPI). I don't have any DIA points for my medium and small stitchers, and I likewise don't have any TRI points for my 441s. Art Looking at getting some new needles. Whats the difference between a 135x16DIA and 135x16TRI? I look at Schmetz website and they look the same to me. One says it is for upholstery and the other luggage. Anyone know if there is a difference? Quote Share this post Link to post Share on other sites
BigChiefLeather Report post Posted January 25, 2012 The Diamond or DIA point is a 4 sided diamond point somewhat elongated. The DIA is good for general harness and saddlery. The TRI point is a small 3 sided triangle point that is generally better for thinner leathers as it starts by punching and slicing, but the hole is enlarged by the shaft after the point. If you have hard, more substantial leather, use the DIA (this should be the exception with the 135x16). It is better to use the TRI if you are using small stitch length (10 or more SPI). I don't have any DIA points for my medium and small stitchers, and I likewise don't have any TRI points for my 441s. Art Awesome thank you, Im sewing 2 layers of 5oz bridle leather. TRI would be a better option for this thickness? Quote Share this post Link to post Share on other sites
Art Report post Posted January 25, 2012 TRI point will work fine for that application. Art Awesome thank you, Im sewing 2 layers of 5oz bridle leather. TRI would be a better option for this thickness? Quote Share this post Link to post Share on other sites
