In a nutshell, the handle will probably hold well past point blade would fail, blade failure much more likely than failure of 1" diameter stainless tubing with 1/8th" wall thickness.any reader here can probably envision simply the handle pressed onto tang and how hard it would be to intentionally disassemble shy of destroying either one, or both, in the effort.
The blade is brazed to the guard on both sides with 172,000 psi shear strength silver solder at 1200deg F, then the handle tubing is brazed identically to back of guard after the press fit.Randall does not claim any, but i suspect with contact and solder wicking and flux, the tang also is getting soldered to inside of tube at base.the gaps next to tang inside the tubing are filled with industrial epoxy to prevent any stored items inside handle from becoming stuck, the epoxy's only official function, although the rock hard epoxy would also prevent any lateral movement of tang, even were it not jammed inside the tubing with zero room to move aside from distorting/destroying the tubing itself. This alone would be hard to come loose no matter the use, but there is more.the main area any loosening would start would be at mouth of tubing under repeated impacts, and it would take a lot of beating to distort the stainless thickwalled tubing.however, the blade has shoulders at start of tang, these shoulders rest on a guard made from 1/4" thick brass plate, and THEN the plate rests on the mouth of the tubing.total support against movement. The handle is 1" OD stainless tubing, with 1/8th" wall thickness X's 2, leaves a max of 3/4" ID.the tang is approx 1/4" thick and is pressed or beat into the tubing to degree tubing is distorted slightly top and bottom, leaving a max gap of 1/4" tapering to zero top and bottom of both sides.tang is approx 1 3/4" long. Let me tell you what i know by looking my early/mid 70's knife, about only difference today being the tang might be a bit shorter on newer. Very old thread, but also high on Google list for hits, the subject of Randall model 18 strength is something many are curious about.
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