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Sherline 1206 - Adjustable 1" Die Holder

Sherline 1206 - Adjustable 1" Die Holder
 
Our price: $60.00
Weight 3.00 lbs
Quantity (10 available)   

Description

Sherline 1206 - Adjustable 1" Die Holder

The 1" die holder utilizes a split plate design to achieve centering accuracy. A 1" button die is held in the face plate, and shafts held in a chuck or collet in the lathe headstock spindle can be threaded. The tailstock is not tightened to the bed, so the die is free to feed itself onto the part as the part is rotated by hand with the spindle, preferably with the large handwheel from the thread-cutting attachment or the P/N 2049 spindle handwheel. Included is a 13/16" bushing that allows smaller dies of that size to be held as well.

Much like the adjustable live center, holding a die in perfect alignment in the tailstock without some method of adjusting it can be difficult or impossible. To achieve perfect centering, the die is mounted in a front plate. The rear plate has the #0 Morse taper that goes in the tailstock spindle. Slightly oversize holes in the rear plate allow the two plates to be adjusted in relationship to each other so that the die can be brought into perfect alignment with the headstock. This is an economical way to have the accuracy of an adjustable tailstock for those who need it while keeping costs down for those who don't.

INSTRUCTIONS FOR USE


Use of the Adjustable Die Holder

The adjustable die holder holds a 1" button die for tapping threads on a shaft. Also included is a bushing that allows a 13/16" die to be held. The depth of thread that can be cut is somewhat limited by the depth of the hole in the base. For smaller threads, a hole can be drilled in the center of the back plate to provide additional clearance. Just make sure you don't get so close to the outside of the #0 Morse taper that you weaken the holder. For larger and longer threads, a simple standoff can be made to hold the die and holder forward of the back plate. Two equal lengths of drilled stock that are square on each end are normally sufficient.

The best method of driving the spindle during this operation would be by hand using a hand crank from the thread cutting attachment (P/N 3100). Allow the tailstock and die to slide along the bed as the die feeds itself onto the part by leaving the tailstock loose enough to move easily. Be sure to get the chips to break clear of the part before backing the die off. A good thread can be ruined when backing the die off if you don't pay attention to this detail.

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