Solid carbide drill offers better-than-gun-drill performance

The Kennametal B27_Z_HPG increases penetration rates by 100 per cent over gun and HSS drills in steel and iron applications up to 30 x diameter deep. The KC7425 grade, based on a sub-micron grade substrate, provides the durability and toughness required for deep hole applications in crankshafts, connecting rods and cylinder heads and blocks found in the automotive industry. The drill features state-of-the-art surface treatment and a specially designed flute profile that increases chip flow and reduces friction that could lead to chip jamming and catastrophic failure. The four margin design guarantees drill stability in applications with cross-holes and irregular or angled exits. The wear resistant coating and unique design makes the B27_HPG suitable for wet and minimum quantity lubricant applications. The B27_HPG in KC7425 is available as a standard product from 3.0 to 10.0 mm in 15 and 20 x diameter. Custom solution drills are available in lengths greater than 20x diameter up to 30 x diameter.