Premium CNC & Router Bits for Precision Cutting

Cutter Knob Wrench

Meet our newly designed Cutter Knob Wrench for engraving machines, engineered for enhanced convenience and precision. This 4-spline wrench now comes with a built-in set screw on the tang, allowing you to easily remove and adjust the bit for maintenance or sharpening. Designed with the needs of engravers in mind, this innovative tool simplifies bit changes, giving you more control to keep your tools performing at their best. Whether you’re replacing a worn bit or simply refreshing its edge, the Cutter Knob Wrench ensures you can do it quickly and efficiently.

Cutter Knob Wrench - Main image
Bristol Wrench KW69 DS-069-4x2Bristol Wrench KW69 DS-069-4x2Bristol Wrench KW69 DS-069-4x2Bristol Wrench KW69 DS-069-4x2
$22.19 $29.99 In stock

Category: 11 643 x 6-1 23 Engraving Cutters

The cutter knob wrench is for the set screw in the brass knob that is on the top loading engraving cutter. The set screws have a 4 spline head and need a special wrench to tighten or loosen.

Bristol Wrench part# DS-069-4×2.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Matthew ★★★★★

Was about to strip the spline head on my brass knob set screw when I remembered I'd ordered this. The 4-spline fit is snug with zero slop, and it reached the set screw on my top-loading cutter without any wobble. Wish I'd grabbed one sooner instead of fighting it with pliers.

Hazel D. ★★★★★

Finally found a 4-spline wrench that actually grabs the set screw in the brass knob without stripping it. I've been mangling those tiny heads with pliers for months on my top loading cutter, and this fits snug with zero slop. Wish I'd bought it sooner.

Evelyn ★★★★★

Wasn't sure this would actually fit the tiny brass knob screws, but the 4-spline head lined up perfectly on the first try. Finally got the set screw tight enough that my engraving cutter stopped slipping mid-job.

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