JESSIN ROCK DRILL CO.,LIMITED is a professional manufacturer of rock drilling tools. The main products areDTH hammer, DTH button bit, DTH drill bit, dth hammer bit, thread bit, PDC bit, impregnate diamond bit, electroplate diamond bit, surface set diamond bit, drill rod, drill pipe, shank adapter, sub, reaming shell. Which are widely used in surface drilling, underground drifting and tunneling, Power and Water projects, quarries, furnace enterprise, etc.

1)DTHhammersizes:3",3.5",4",5",6",8"*2/

DTHhammershankstyles:DHD3.5,DHD**0,DHD**0,DHD**0,DHD**0,SD4,SD5,SD6,SD8,Mission*0,Mission*0,Mission*0,Mission*0

2)DTH Bit diameter: *4mm to **0mm/Bit face: flat, concave, convex and drop center.
/Button shape: spherical, ballistic, semi-ballistic

3)Button bits, connection tapered or threaded, diameter from *3mm to **7mm; 
4)Cross bits, connection tapered or threaded, diameter from *8mm to *5mm; 
5)Coupling sleeves, R*5, R*2, R*8, T*8, T*5, T*1; 
6)Diamond tools, core bits and saw blade;