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Henan Zhongmei Drill Tool Co., Mining Tool Expert, PDC concave drill bit bit,PDC Pillar bit,PDC Drag bit,PDC Core bit,PDC bit - details see: https://www.machineto.com/pdc-anchor-shank-bits-pdc-drill-bit-pdc-pdc-10149554

PDC/coal bit/anchor shank/drill/bit/shank/geological/PDC/PDC shank drill bit

specifications:25mm 27mm,28mm,29mm,30mm,32mm,36mm,42mm,

thread size:M14X1.5 M14X2 M16X2 M12X1.75

this product have economic cutter with good impact resistance. it out performs displays remarkably.good abrasion resistance improved bit life and rate of penetration

anchor shank drill bits suitable for soft medium or medium hard stratum

Application: Apply to the anchor-network support hole drilling in coal mine, transportation, hydropower, and so on.

Characteristics: high wear resistance and impact-resistant toughness; long drilling life,, drilling efficiency can be promoted sharply in penetration of soft and medium soft formation; laber intensity can be reduced

The coal bits mainly used in coal and mine drilling.We can do different measures according to customer's requirements or drawing

type one

Colliery Tools	Main Standard(mm)
	D	H	L	M
	27	44	17	M14×1.5
	27	54	17	M12×1.75
Thread	28	54	20	M12×1.75
joint	29	52	18	M14×1.5
	30	50	18	M14×1.5
	32	52	22	M14×1.5
	32	56	22	M12×1.75

type 2

Colliery Tools	Main Standard(mm)
	D	M
Thread Joint	38	12
	40	12
	42	12