456B Three-Flute S/SK Countersinks
In stock
SKU
456B
M2 High Speed Steel Three flutes generally to BSS 328 part 5 (1983)
Parallel shank Form B of DIN334, DIN335 and DIN347
Countersinks for general-purpose operation in a wide range of materials, both ferrous and non-ferrous, and now
the most popular style for general use. Wide chip spaces allow ease of working in some non-metallic materials.
Can be used on the production line or hand-directed tools for maintenance and site work. Metric sizes have
radial relief of the teeth which reduces rubbing and permits fast cutting rates. 3-flute style aids centrality and
easy starting.
Available routinely in 60° included angle (DIN334), 90° (DIN335), and 120° (DIN347)
Limited stocks of other angles, such as 82° and 100° are available, and other combinations can be supplied
to special order. In case of special manufacture, the quantity ordered will determine the unit price.
PLEASE NOTE THAT COUNTERSINKS are suitable for sinking a range of diameters, so that the large (outside) tool diameter
is rarely critical, and therefore near fractional and metric sizes may be used interchangeably. This increases the range of options.