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Centrios | Cylindrical Lock Through-Bolt Drill Jig, Fits 2-3/8" & 2-3/4" Backsets, 5/16" Bit | CE-DRILL-JIG

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SKU:
CEN-CE-DRILL-JIG

The Centrios Drill Jig is the field tool that locates the two through-bolt holes for a Centrios cylindrical lock install. Drop it into the crossbore you already cut, the tabs center it in place, and the jig gives you the exact drill points for the mounting bolts at either a 2-3/8" or 2-3/4" backset. One tool for both standard backsets, no measuring, no template stickers.

How it works

After the crossbore and edge-bore are cut with a standard hole saw, the drill jig drops into the crossbore and locks in with its alignment fingers. The jig is labeled on-tool for the two standard backsets (2-3/8" and 2-3/4") and calls out the 5/16" drill bit needed for the through-bolts. Drill each hole only halfway from one face, then flip the door and drill the other half from the opposite face so the through-bolts meet cleanly in the middle without blowout.

Where this fits

Any Centrios cylindrical install on wood or metal doors: new construction, retrofits, or replacements. Techs who install more than a few Centrios locks a month pay this tool off in labor time and eliminated re-drills.

Key features

  • Locates 5/16" through-bolt holes at either 2-3/8" or 2-3/4" backset (on-tool labels for both)
  • Drops into a standard cylindrical crossbore with self-centering alignment fingers
  • Instructions printed on the jig: drill halfway from each face to prevent blowout
  • Works on wood and metal doors across the Centrios cylindrical family
  • Field-durable molded body for daily use on route

Related hardware

Brand:
Centrios
Type:
Installation tool / through-bolt drill jig
Use case:
Locates the two mounting-bolt holes on a Centrios cylindrical lock install after the crossbore is cut
Ecosystem:
Proprietary to Centrios (ASSA ABLOY)
Included:
Drill jig only
Backsets supported:
2-3/8" and 2-3/4" (both labeled on-tool)
Drill bit required:
5/16" (labeled on-tool)
Install method:
Drop into crossbore, self-centering fingers hold alignment, drill halfway from each face of the door
Compatibility:
Wood and metal doors across the Centrios cylindrical lock family
What does this jig actually do?
It locates the two 5/16" through-bolt holes on either side of the crossbore at either a 2-3/8" or 2-3/4" backset. It does not cut the crossbore or the edge-bore. Those are done first with a standard hole saw.
What size drill bit do I need?
5/16". The jig is labeled directly on-tool with the bit size so there's no guessing on the door.
Does it work for both 2-3/8" and 2-3/4" backsets?
Yes. Both backsets are labeled on the jig itself. One tool handles both standard cylindrical backsets.
Why drill halfway from each side?
To prevent blowout on the exit side. The jig is labeled with this instruction. Drill down halfway through the door from one face, flip the door, then drill the other half from the opposite face so the two through-bolt holes meet cleanly.
Does this work on metal doors?
Yes. The jig is used on both wood and metal doors across the Centrios cylindrical family. The same 5/16" bit works for both (use an appropriate bit rated for metal on hollow-metal doors).