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The back block in 1-1/2″ OD X 6″ CLR tube die set has no pin hole for the U-Pin to go thru, but it has a bolt and washer. How come?

April 26, 2017block clr die od tube

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10 Posted

The back block in 1-1/2″ OD X 6″ CLR tube die set has no pin hole for the U-Pin to go thru, but it has a bolt and washer. How come?

1 Answer

0

10 Posted

In our larger size die sets, there’s a lack of space to fit a pin hole in the back block. We use what’s known as a “bolt-on back block”. This back block bolts to the 12B Oscillating Block, which comes factory installed with your bender. The 12B Oscillating Block has a flat side with a horizontal hole. Place your back block against the flat side with the TOP stamp facing up, and slide the bolt through the horizontal hole, then finger tighten the bolt. Insert your tube between the form die and back block, and tighten the bolt with a wrench. Grease your draw block, drop it in place, and you should be ready to bend.