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Drillpro 12pcs 15mm-50mm Hole Saw Cutter Alloy Drill Bit Set for Wood Metal Cutting
US$29.00 US$29.99

Q: This may be a stupid question, but what is the spring around the drill bit for, and do you leave it on for all drilling applications ? Thanks.

Asked by BG541614561 on 2022-06-28 21:20:58

Phil hi. the spring is there to push out the metal that you have cut . it would be difficult to remove the waste metal if you remove the spring

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