With solid full-length 6 mm screw shaft and self-cutting thread. Can be screwed in easier than standard supports; the wood is not forced aside but is 'cut'. Predrilling hard wood is no longer necessary. Considerably less cracking of the wood when screwing. Best insulation qualities, high-impact plastic. Incl. drill chuck. 75 pcs.
for Bucket of Ring Insulators Easy Drill
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