Depth locator apparatus for insert bit holders

Details Depth locator apparatus for insert bit holders Depth locator apparatus for insert bit holders

1990-05-21

1991-05-07

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Responsive to movement of work

81451, 81438, B25B 2300

Patent

active

050127080

ABSTRACT:
Depth locator apparatus for insert bit holders provides a means for adjustably setting the depth of a screw head relative to a fastened work-piece surface. The apparatus is comprised of a sleeve, externally threaded, and with an internal bore to affixedly engage the drive end of a bit holder. The apparatus additionally includes two locking rings with internal threads to engage the external thread of the sleeve. The depth of the fastener relative to the work-piece surface is determined by the location of the outermost lock ring, relative to the insert bit, as it locates against the surface, being constrained against axial movement by the rearmost lock ring.

REFERENCES:
patent: 1126370 (1915-01-01), Borresen
patent: 3707894 (1973-01-01), Stillwagon, Jr.

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