Technical Information Tap Styles • Methods of Chip Handling Through Holes Blind Holes Push Chips Pull Chips • GUN™ (spiral point) or • RHSF (Right-Hand LHSF (Left-Hand Spiral Flute). Spiral Flute). • Ideal for materials • Ideal for materials with long chips. with long chips. GUN™ LHSF RHSF Blind or Through Holes Blind or Through Holes Store Chips No Chips • STFL (Straight Flute). • Forming. • Ideal for materials • Ideal for ductile with short chips. materials <32 HRC. STFL Forming Tap widia.com Y97 Technical Information