Summary

Tool to use with a DeWalt cordless grinder (DCG414 in my case). The grinder comes with an Allen Key to open the clamp, which I find a little light on. This tool uses 2 x 6mm Allen Key bits to engage the grinder clamp and get better purchase.

You need:
(2) 6mm by 1/4" Allen Key hex bits

Print Settings

Printer Brand:

Creality

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Ender 3 Pro</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.16mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>75%</p></div></p>                                                    <strong>Filament:</strong> eSun PETG                Black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>You could also use ABS.  Not sure that PLA would be a good choice but might be worth a go.</p></div>

Post-Printing

Insert bits into printed spanner

            <div><p>The bits are a size for size fit, so take some tapping in to fit but we're looking for a firm fit here - it's not hard.  Tap them through until about 2 or 3mm protrude through</p></div>

DeWalt Cordless Grinder Spanner