30 Hole Bur Holder Jewelers Bench Rotary Tools 3/32" This is a new plastic, green 30 piece drill bit stand organizer It has 30 holes for organizing burs, needle files, beaders, mini brushes, etc Each hole is approximately 3/32" in diameter It measures approximately 4 5/16" x 2 3/16" x 1 3/8" (109.6 x 55.4 x 35.4 mm)