From this slides you can know about the basic stitching needle classification & use in various products like fabric or leather in industrial use.

2. A needle point is classified broadly
into two types:
Round, set or cloth point
i. Set point
ii. Ball point
Cutting or leather point
i. Wedge point
ii. Cross point
iii. Twist point

3. Slim Medium Heavy
Top stitching
Collar
Woven
Sewing buttonKnit
Button
Set point
Cloth Point needle

4. Ball point
Light Medium Heavy
Densely woven material
Lightweight knitted fabric
Coarse denims
Medium weight knitted fabric Coarse knitwear
Dense woven elastic

5. Cutting or leather point
 Normally used for sewing sheet type materials like
plastic, leather or other materials.
 Because, in these materials there is no gap within
the structure.
 needle point must prepare sufficient hole in the
material so that thread can pass through it

6. Wedge Point
Cutting or leather point
 High stitch density

7. Cross Point
 Large stitch
length
 Heavy
Decoration
 Parallel to seam

8. Twist Point
 Heavy
Decoration
 Follow an angle