008 threading

THREAD-CUTTING TOOLS and PROCEDURES

THREAD SYSTEMS Dimensioning Code American National and Unified Screw Thread Classes of fit: 1 – lose fit 2 – medium fit 3 – tight fit

THREAD SERIES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

THREAD SERIES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

TAP DRILL SIZE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Cross-section of tapered hole Major Diameter Minor Diameter Pitch Depth Tap Drill Size

SET OF HAND TAPS ,[object Object],[object Object],[object Object]

TAPPING A HOLE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

REMOVING BROKEN TAPS ,[object Object],[object Object]

PROPER CARE OF TAPS ,[object Object],[object Object]

THREADING DIES ,[object Object]

THREADING DIES Solid die Adjustable split die Used for chasing or recutting damaged thread Has an adjustment screw that permits an adjustment over or under the standard depth of the thread. Half dies have the advantage of taking smaller cuts to reach correct size, so the amount of material taken off can be controlled. Half die

USING DIES ,[object Object],[object Object],[object Object]

008 threading

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008 threading