The lower portion of the tap guide should remain as square as possible to the engine surface. Turn the tap slowly while making sure the guide remains flush. TAP GUIDES INSURE THAT THREADS ARE SQUARE TO SURFACE.
RZX 8" Rivet NUT Gun M3 M4 M5,m6,1/4-20m10-24, 8-32, M6 x 190mm, Red
Time-Sert 16101 M6 x 1.0 x 9.4mm Carbon Steel Insert - 10 Pack
Time Sert 16105 M6 x 1.0 x 8.0 Carbon Steel Insert - 10 Pack
Time Sert 16103 M6 x 1.0 x 12.0 Carbon Steel Insert - 20 Pack FREE SHIP
TIME-SERT M6x1.0x12mm Insert Qty 10 p/n 16103 M6 x 1.0 x 12mm, Black
Time Sert 16101 M6 x 1.0 x 9.4 Carbon Steel Insert - 20 Pack FREE SHIP