SINODRILLS Retract Threaded Button Bits

With the top quality of alloy steels imported from USA and the best carbides made in China, we produce all threaded button bits by hot press technology.

Parameters

• Thread size: R25, R28, SSR28, R32, SSR32, R35, SSR35, R38, T38, T45, T51, SST58, SST68, SGT60;

• Head diameters: 51mm ~ 152mm;

• Face designs; flat face, drop center, uni-face;

Features

• Alloy buttons are hot mounted into the drill bit, ensuring the bit good accuracy and durability;

• Reliability ensured by premium drill bit materials and premium alloy button;

• Different types designed for different drilling scenarios and rock conditions;

• High speed and drilling efficiency;

• Cost-effective, good performance with reasonable price.

Applications

Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.

	Flat front: For drilling in medium to hard and abrasive rock
	Drop center: For drilling in medium hard, with maximum hole deviation control.
	Retract skirt: For drilling in loose, broken or fissured rock where it is difficult to retract the drill string due to the hole collapse.

	R32 Thread Button Bits R32 Thread Button Bits, Retract Skirt Diameter: 51-64mm
	R38/T38 Thread Button Bits R38/T38 Thread Button Bits, Retract Skirt Diameter: 64-89mm
	T45 Thread Button Bits T45 Thread Button Bits, Retract Skirt Diameter: 76-127mm
	T51 Thread Button Bits T51 Thread Button Bits, Retract Skirt Diameter: 89-127mm