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Fisch Forstner Bit for Neck Ferrules

Fisch Forstner Bit for Neck Ferrules

5/8" Bit

Item # 4496
Due 1-3 days
Email when in stock


15mm Bit

Item # 4499
In stock, ready to ship!


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Fisch Forstner Bit for Neck Ferrules

About This Item

Drill flat-bottom holes with smooth, clean edges. Ideal for flush-fit neck attachment ferrule installation (after all, there's no neck plate to hide ragged holes).

Patented "Wave Cutter" flutes generate less heat, for longer life and efficient wood chip discharge.

Choose your bit based on your finish.

5/8" bit (#4496) will create a slightly bigger hole than our Neck Attachment Ferrules, to accommodate finish overspray build-up in the drilled holes.

15mm bit (#4499) cuts a smaller hole for a tighter fit — best for oil finishes or thin, vintage-style finishes where build-up is not a factor.

Both bits are forged steel with 8mm (5/16") shank.

WARNING: Cancer and Reproductive Harm -

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  • 4.00 average rating from 2 reviews
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Perfectly clean hole and fit


Verified Buyer

On a drill press this drilled perfectly clean holes that that fit the neck bolt ferrules like a glove. Make sure to order the correct size for the application though.


too big


Verified Buyer

This bit is too big for the ferrules it leaves close to a 1/4 inch space all the way around the ferrules. Its also way over priced. Should be 10- 15 dollars.

Response from StewMac

Thank you for sharing your feedback with us. We stand behind our return policy -- if you are not satisfied you may return it, unaltered, for a refund or exchange. Please call us at 1-800-848-2273.

The intended use of the 5/8" bit is to drill oversize hole to allow for finish overspray in the recess. If you plan to fit the ferrule with no finish in the hole, we recommend the 15mm bit. We hope this helps!