Just drill a pilot hole for the draw bolt, then apply the tool and tighten the bolt with a box end wrench or rachet for a smooth, flared hole in one easy step. You can use the use punch and die without the female flare ring to punch a straight hole only.
Automotive Punch and Flare Tools punch holes the diameter of the punch and as the flare is formed the hole is enlarged about 1/8". The leg formed is approximately 1/4" tall. Punch to die clearance is .012".
Maximum Thickness Capacity: