Two-wing/four-wing expanded bottom drill

Model List

Cutting Dia	Tool HIT	Swing NO.	Limit Hole NO.	Reaming Multiples	Teeth NO.	Weight
&600-1200	3100	2	2	1.5-2.0	32	1250
&800-1600	3100	2	3	1.5-2.0	32	1340
&900-1800	3100	2	3	1.5-2.0	32	1460
&1000-2000	3100	2	3	1.5-2.0	34	1785
&1100-2200	3100	2	4	1.5-2.0	34	1925
&1200-2400	4050	2	4	1.5-2.0	34	2510
&1500-3000	4350	2	4	1.5-2.0	38	3950
Remark: All measurements are in milimeters, weight in kilograms.

Feature

Adjustable cutting arms can meet the specific requirements of different reaming diameters;

After reaming the bore hole, convey spoil with drilling bucket or cleaning bucket;

Cutting arms are easy to spread and retract; box-type structure is easy to maintenance;

Applicable layers: hard stratum ,frozen soil and medium soft rock;

Customizable Items

Cutting DIA,Custom:design various cutting diameter based on demand,like&950 &1050 etc.;

Key Component Reinforce Custom:strengthen the key component to extend life cycle;

Kelly Box Custom: custom kelly box size based on the kelly bar, like150*150 200*200 250*250 etc;

Swing No. Custom: double swing or trible swing design as demand;

Limit Hole No. Custom: add more limit hole to satisfy different reaming diameter demand;

DRILL BUCKETS