Material: HSS / High Speed Steel. 1pcs x HSS Drill Bit Hole Saw. Brass Reducer Connect BSP Female Male Thread Reducing Joint Pipe Converting 2PCS. Can work for 3mm Stainless steel plate and can quickly punching the precise holes in Steel, Stainless Steel,iron, Copper, Brass, Aluminum, Fiberglass, Formica And Other Laminates In Seconds.
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