8PC FLAT WOOD BIT SET CW EXTENSION ARBOR SIZES INCLUDED:6MM, 10MM, 13MM, 16MM, 19MM, 22MM, 25MM, 32MM COMPLETE WITH 300MM EXTENSION PLUS 1 HEX KEY SUITABLE FOR MOST WOOD DRILLING APPLICATIONS INNER QUANTITY 20 ** CASE QUANTITY 40 FULL PRODUCT DIMENSIONS 22x29x2