Drilling Head Rings
Head Sizes: Φ102xΦ83×15 int. l. square, Φ53xΦ35×12 int. l., Φ54xΦ40×10, Φ61xΦ43×12 int. l., Φ65xΦ47×10, Φ65xΦ47×17, Φ66xΦ42.5×10 εσωτ. R, Φ71xΦ51×15, Φ71xΦ54×14 int. l., Φ76xΦ60×17.5,
Φ77xΦ55×20 with linen, Φ77xΦ57,5×18, Φ79xΦ62.5×18, Φ86xΦ65×18, Φ86xΦ65×18 with linen