Rod Builders Machinist Grade 12″ Stainless Steel Ruler is one of the best tools for doing your initial grip and reel seat layout.

• 12″ long (30 cm)
• Gradations at 1/2, 1/4, 1/8 and 1/16″
• Inches to millimeters conversion table on backside of ruler including tap drill size chart; this is one of the best features of this ruler
• Handy hanging hole (although mine lays around the bench)