E-STFPR/L-HEAD :  Interchangeable screw clamped boring heads for positive 11° clearance triangular inserts, used on a carbide bar.  
 Right-hand shown
 
Int. 60° triangle 91° approach COOLANT
  Designation
d

l1

l2

h

h1

f

Ga°

Gr°
D
min

R/L
  E12 STFPL-11 HEAD  12.00  179.00  24.8  11.0  5.5  6.8  4  -6  13.00  L
  E12 STFPR-11 HEAD  12.00  179.00  24.8  11.0  5.5  6.8  4  -6  13.00  R
  E16 STFPR-11 HEAD  16.00  200.00  37.0  15.0  8.0  8.8  4  -6  20.00  R

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