WTP-Straight Flute Tap WTP-Straight Flute Tap Suitable for hard to process materials with Straight Flute Taps. Ask for the spec sheet SPECIFICATIONS Highlights Ground on 5-axis CNC machines. Multi-layer nano coating. Simple, high-precision structure. Advantages Longer tool life than conventional taps. Easy to operate, no resharpening. High productivity in through holes. Reduces tooling inventory costs. Recommended materials high-carbon steelcast iron Back to Threading catalog Need the Right Threading Tool for Your Application? Send us your thread size, workpiece material, hole type and machining requirements. We’ll help you select the right tap or thread milling solution. Contact us