Craft-Pro by Presto 3 piece Step Drill Set with Tri-shank

• Contains 3 Step drills: 4-12mm, 4-20mm & 6-30mm.
• Tri-shank (round with 3 flat surfaces), ensures greater accuracy and prevents drill from turning in chuck.
• Each Step Drill has size graduations marked.
• Supplied in a plastic flip up case
• Craft-Pro is a division of Presto Tools of Sheffield, England