CFA, 600 CFA, 700CFA

Type：

1，CFA kelly.

2，CFA rock starter.

3，CFA soil starter.

Factory detials：

Features：

1，Material: Q345B(ST52) and 25Crmo.

2，Replaceable rock polit with B47K22H round shank chisels or fisftail polit.

3，Progressive cutting edge with round shank chisels.

4，Wear protection: hard facing or wear strips

CFA Parameter：

CFA Kelly
Size(mm)	Diameter(mm)	Pitch(mm)	Thickness(mm)	Length(m)
300	280	280	16	2-10
400	380	300	16	2-10
500	480	350	16	2-10
600	580	400	20	2-10
700	680	400	20	2-10
800	780	500	20	2-10
900	880	500	25	2-10
1000	980	600	25	2-10
Other sizes can be customized
CFA Drill Head
Size(mm)	Diameter(mm)	Pitch(mm)	Thickness(mm)	Length(m)
300	280	280	16+20	2-10
400	380	300	16+20	2-10
500	480	350	20+25	2-10
600	580	400	20+25	2-10
700	680	400	20+25	2-10
800	780	500	20+30	2-10
900	880	500	20+30	2-10
1000	980	600	20+30	2-10
Other sizes can be customized