Our HANDY BLOCK is a 4-1/2″ x 6″ block of cured hardwood with 88 holes for organizing burs, needle files, beaders, mini brushes, etc. Each hole is 1/8″ in diameter to accommodate either 1/8″ or 3/32″ shanks. This block is slanted so the user can see all instruments at a glance. The HANDY BLOCK also features stay-put rubber pads on the bottom to keep it from sliding. A EURO TOOL original!