Durpoten Thread Button Bit is made by the best quality alloysteel bar and tungsten caebide, through?heat treatment?to get a superior performance?in the?toughest rock drilling, and transmit intensive impact energy into the rock with least loss for energy.

Thread model available: R22; R25; R28; R32; R38; T38; T45; T51; T60; ST58; ST68; GT60;
Thread button Bit skirt available: Regular Skirt; Retrac Skirt;
Thread Button Bit face available: Falt face; Drop Centre face;
Thread Button Bit button shape available: (Hemi)Spherical; Ballstic; Conical
Thread Button Bit size available: 35mm-152mm.

Thread	Diameter range	Skirt Design	Face Design	Button Design
R22	35 – 45mm	Normal	Flat Face	Hemispherical Ballistic
R25	33 – 57mm	Normal	Flat Face	Hemispherical Ballistic
R28	36 – 51mm	Normal	Flat Face	Hemispherical Ballistic
R32	41 – 89mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
R35	48 – 51mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
R38	64 – 102mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
T38	57 – 102mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
T45	70 – 127mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
T51	76 – 140mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
T60	89 – 140mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
ST58	89 – 140mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
GT60	93 – 140mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical
ST68	102 – 152mm	Normal Retrac	Flat Face Drop Centre	Hemispherical Ballistic Conical

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