Accusize - 29 Pcs/Set HSS Chucking Reamer Set, 1/16'' to 1/2'' by 1/64'' Straight Flute, Right Hand Cut, 5500-SF00 H.S.S. Straight Shank Straight Flute, Right-Hand Cut Tolerance: +0.0002&#034; - 0.0000&#034; 29 PC Set: 1/16&#039;&#039; through 1/2&#039;&#039; By 64ths, Fractional size Thru 1/2&#034; diameter +.0002&#034; -.0000&#034; Above 1/2&#034; to 5/8&#034; +.0003&#034; -.0000&#034; Above 5/8&#034; to 1-1/2&#034; +.0001&#034; -.0004