References ranges are:
• 15/10
• 20/10
• 25/11
• 30/12
• 35/13
• 40/14
• 50/15
• 60/16
• 70/17
• 80/18
• 100/20
• 120/21
• 140/22
• 150/23
• 190/24
Round-headed points
Galvanized points
Decorative points
Glazed points