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