TJ type reversible deep hole rough boring headDetailed product description：

This tool is a single blade machine clamp with an indexing structure, suitable for rough and semi precision machining of deep holes.

Unit: mm

Boring head specifications	Equipped with a knife holder	Boring head specifications	Equipped with a knife holder
50-60	forty-three	108-137	one hundred
61-72	fifty-six	138-177	one hundred and thirty
73-77	sixty-five	178-300	one hundred and sixty
78-87	seventy	>300-500	two hundred and twenty
88-107	eighty

TJ type rotatable deep hole rough boring head