This Royal BH bevel headed punch/quill punch has a 60 degree beveled head and a straight shank. It is made from your choice of either M2 high-speed steel heat-treated to 60-63 Rc, or O1 oil-hardening steel heat-treated to 58-60 Rc. We draw the heads back to a lower hardness on the O1 punches. Regardless of the steel type you choose, the shank diameter tolerance is +/-.0003 to within 3/8 of the head. Some of the shank diameters are precision form-ground (after heat treat) to achieve a better finish and a +/-.0003 diameter tolerance that extends all the way up to the head. These punches are indicated by * in the |D| Range menu above. Any shank diameter range that is not marked * has the diameter ground before heat treat and the finish is burnished as a result. You may notice that the shank is slightly oversize (more than +.0003) within 3/8 of the head. This happens when we hot-forge the heads. But the oversize effect is not present on the * punches because any excess material near the head is removed by the precision form grinding.The available decimal inch diameters are .020 to .500 in .001 increments. Please contact us if you need a diameter manufactured to a .0001" increment, or if you need us to make any alterations.RELATED:Royal BH Punches in Fractional Inch Diameters, Length: 2" or 2.5"Royal BH Punches in Fractional Inch Diameters, Length: 4" or 6"Royal BH Punches in Decimal Inch Diameters, Length: 4" or 6"DELIVERY TIME: Punches up to .375 in diameter are normally in stock and ship the next business day. Contact us for Royal punches over .375 in diameter, which are made-to-order and have longer lead-times.SHIPS FROM: Royal Pins products are sent directly to you from the factory in Warren, RI MINIMUM ORDER: Your order receives immediate processing when it includes at least $35 in Royal Pins products. If your order has less than $35 in Royal Pins products, we may delay or cancel it.
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