Paul, With the original WNG glue, which is a much thinner viscosity, the 4.8mm drill, which is .004" larger that 4.7mm, was correct for the sanded shanks. But since we have changed to the Gel CA glue we needed to change the drill size. Now it is not necessary to sand the shanks for good bond with the Gel CA and this bring the shank to the true 4.7mm (.185") size. So the .193" is not too much "wiggle" room at all, especially with the thicker viscosity Gel CA. Thanks, Mark
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