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HSS-Co Spiral Flute Taps
Whilst tungsten carbide is extremely hard it is also brittle so it is important to avoid bit chattering" as this is the most common cause of tool failure
coated stainless steel blade
The chamfer also reduces marking of the head-shoulder junction when using painted hex head screws
The TiN coating is achieved by Physical Vapour Deposition (PVD)
Cobalt Bi-Metal Hole Saw Size:57mm HSS Cobalt Bi-Metal Hole Saw HSS-Co Spiral Flute TapsHSS Cobalt Bi Metal Hole Saw Bordo bi metal hole saws are premium quality, general purpose saws suitable for a wide variety of materials and applications. The high speed steel cobalt (HSS Co) cutting edge provides shock resistant teeth and resists tooth strippage. 4 6 positive tooth configuration allows for fast, smooth cuts and less vibration. 48mm (1 7 8") depth of cut. 5mm (3 16") thick heavy duty backing plate eliminates need for drive plate.