Drill's Steep Gash Angle Facilitates Better Hole Quality
Walter USA says that a steep gash angle from its new DC 160 Advance solid carbide drill provides ample space for secure chip flow, which results in improved hole quality and reduced feed force.
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Walter USA says that its new DC160 Advance solid carbide drill delivers high productivity in a wide variety of materials and can be used in a broad range of applications. The margins are located in an advanced, forward position to ensure rapid guidance in the hole. Walter says that a steep gash angle provides ample space for secure chip flow, which results in improved hole quality and reduced feed force. According to the company, a new, thinner web provides for better positioning accuracy and improved roundness. The DC160 Advance is available in 3, 5 and 8×D and features grade WJ30ET, which includes a Walter coating to optimize tool life. It has a cylindrical shank ground to an h6 tolerance, which makes it suitable for shrink-fit and hydraulic holders. The point angle is 140 degrees, and Walter recommends a coolant pressure of 145–580 psi (10–40 bar). With internal coolant, the drill is suitable for ISO P, M, K, N, S, H and O material types.
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