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Bridge Pin Hole Chamfer Tool

5.0
  • 12 Reviews
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Bridge Pin Hole Chamfer Tool

Item # 0459
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Bridge Pin Hole Chamfer Tool

About This Item

A better way to countersink bridge pins! Here's a unique cutter we've designed to solve bridge countersinking problems.

It eliminates bit chatter, gives you precise, consistent control of the size and depth of cut, and keeps the bevel round, even on a curved bridge surface. You can use it with your hand drill, for cleaner, more professional results.

The Bridge Pin Hole Chamfer Tool gives you much better control than a standard countersink bit. The tool includes a steel pilot for new unreamed 3/16"-diameter bridge pin holes, and another for older bridges that have already been reamed. The pilot keeps the cutter spinning on center, eliminating chatter for a clean cut. An Allen-adjustable brass depth stop controls the cut of the tapered 4-fluted bit. Delrin® lining on the depth stop helps protect the surface of the bridge. When used in a hand drill, the depth stop keeps the cutter perpendicular to the bridge surface, so the countersunk bevel always remains round.

Our thanks to luthier Bryan Galloup for suggesting this great tool!

Instructions and Allen wrench included.


Trade Secrets!

Trade Secrets!

Fixing a 1937 Martin bridge. The first step is fixing a sandwich!

Dan Erlewine's got an unusual bridge problem and an unusual repair.

Instructions

Product Instructions

Bridge Pin Hole Chamfer Tool Instructions

Instructions for using the Bridge Pin Hole Chamfer Tool.

Customer Reviews

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5.0
  • 4.92 average rating from 12 reviews
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4.0

Great tool for the job, but what about countersinking narrower 3 degree tapered pin holes?

By
(Customer's Reviews)


This countersink can make perfect chamfered holes when making a brand new bridge or countersinking already reamed 5 degree tampered pin holes, but the pilot bits wont fit in a narrower already reamed 3 degree tapered hole. The hole must be reamed to the wider 0.220" 5 degree taper pin size for the 7/32 pilot to work. So if you want to work on a Yamaha or any guitar that uses holes already reamed for 3 degree taper pins, this wont quite work. Has anyone else encountered this flaw, or is it just me???

Would be nice if a pilot bit machined for the smaller reamed 3 degree size (0.210 - 0.203 under skirt diameter) was included as well!

5.0

Good tool, works well

By
(Customer's Reviews)


I'm getting clean chamfers effortlessly (small cordless drill) Depth stop may polish the top of the bridge but does not damage it.
Would suggest fitting 10 x 16 x 0.3 mm shim washers behind brass/plastic stop against shoulder of cutter to give consistent diameters at top of chamfer (I use 2)
Useful if you disassemble to clean as it goes back to exactly the same setting.
Maybe too much to ask SM to provide shims?

5.0

Perfect Job!

By
(Customer's Reviews)


Another fine tool set is very useful and it does the job very well!

5.0

StewMac Chamfer Tool

By
(Customer's Reviews)


Once I learned how to best use this thing, it worked great. Using as recommended in an electric drill did not leave the pristine holes I wanted. But, using this tool in one of those old time hand crank drills, working very slowly, left crisp, clean, beautiful holes. Would not attempt a bridge pin hole without it now.

5.0

As advertised

By
(Customer's Reviews)


If you don't like removing chatter marks from pin hole craters, get one of these. Another amazing tool that makes another annoying task no longer annoying.

5.0

Bravo

By
(Customer's Reviews)


This bit does exactly what it is meant to do, elliminates any second guessing, leaves a very clean hole.

5.0

Adds a nice touch

By
(Customer's Reviews)


This does what it says. It is a must-have if you're making a bridge or if you have to shave an existing one down to the point you need to re-create the chamfers.

Use very light-pressure so the depth-stop doesn't burnish the bridge with a circle!

5.0

great tool

By
(Customer's Reviews)


This tool makes chamfering bridgepin holes foolproof. You can chuck it in your portable drill to use on bridges that are glued-on, too. Absolutely perfect results. It seems pricey until you realize how much time it saves you.

5.0

Bridge Chamfer

By
(Customer's Reviews)


A good tool. Used in a hand drill produces good and controled results as stated.

5.0

Essential Tools!

By
(Customer's Reviews)


Easy and precise chamfering!

Showing 10 of 12 Read more reviews >>


StewMac PDF Catalog, page 30 See Bridge Pin Hole Chamfer Tool
on page 30 of our StewMac Catalog PDF

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