Screw Tip (Thin) - Mandrel - 5pcs high and the shaft is thin

and the shaft is thin so it can follow in behind the drilling action

making this fossil pinecone nearly impossible to acquire

Approximate Size of 1 piece: 36mm x 26mm x 21mmApproximate Weight of 1 piece: 18g

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Geographic Age: 53 million years ago

Screw Tip (Thin) - Mandrel - 5pcs high and the shaft is thinDescription: These screw tip mandrels thread into various silicon and rubber abrasive bits. The threading on these is thin and long, so it will fit most abrasive brands and varieties that require screw tip styles. Made In: China Overall length: 45mm Shaft diameter: 2. 3mm Thread length: 12mm Thread width: 3mm (at widest) Weight: 1. 5g Material: Metal Quantity: 5 Mandrels