Retrac button bits are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried, and help improve the straightness of the borehole.

As a China retrac button bit supplier, we can provide you with high-quality button bit includes retrac rock roller drill bits, such as R25 retract button bit, R28 retract button bit, R32 retrac button bit, R35 retrac button bit, R38 retrac button bit, T38 retract drill bit, T45 retract drill bit, T51 retract drill bit, GT60 retract button bit, ST58 retrac button bit, ST68 retrac button bit, SR35 retrac bit.

Retrac Button Bit Specification

R25

Appearance Diameter Buttons Flushing Hole Weight Model No.

[mm]

[in] Gauge

[No.] × [mm] Front

[No.] × [mm] Side

[No.] Front

[No.]

[kg]

41 1 5/8" 5 × 9 2 × 8 2 1 0.78 R25-417YFP

45 1 3/4" 6 × 9 3 × 8 1 3 1 R25-459YFP

48 1 7/8" 6 × 10 3 × 9 1 3 1.1 R25-489YFP

51 2" 6 × 10 3 × 9 - 3 1.35 R25-519YFP

55 2 11/64" 6 × 11 3 × 9 1 3 1.54 R25-559YFP

57 2 1/4" 6 × 10 3 × 10 - 3 1.6 R25-579YFP

64 2 1/2" 8 × 11 4 × 10 1 2 2.2 R25-6412YFP

R28

Appearance Diameter Buttons Flushing Hole Weight Model No.

[mm]

[in] Gauge

[No.] × [mm] Front

[No.] × [mm] Side

[No.] Front

[No.]

[kg]

45 1 3/4" 6 × 9 3 × 8 1 3 1 R28-459YFP

51 2" 6 × 10 3 × 9 1 3 1.35 R28-519YFP

R32

Appearance Diameter Buttons Flushing Hole Weight Model No.

[mm]

[in] Gauge

[No.] × [mm] Front

[No.] × [mm] Side

[No.] Front

[No.]

[kg]

45 1 3/4" 6 × 9 3 × 8 1 3 0.9 R32-459YFP

48 1 7/8" 6 × 10 3 × 9 1 3 1.1 R32-489YFP

51 2" 6 × 10 3 × 9 - 3 1.2 R32-519YFP

57 2 1/4" 6 × 10 3 × 10 - 3 1.7 R32-579YFP

64 2 1/2" 6 × 11 3 × 10 1 2 2.2 R32-649YFP

60 2 23/64" 8 × 10 4 × 9 1 2 1.7 R32-6012YFP

64 2 1/2" 8 × 10 4 × 10 2 2 1.9 R32-6412YFP

76 3" 8 × 12 4 × 11 2 2 2.2 R32-7612YFP

76 3" 8 × 11 4 × 11, 1 × 11 - 4 3.3 R32-7613YFA

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Litian Retrac Button Bit Features

Litian retrac button bits are made of high-quality steel and cemented carbide as raw materials, so they have a long service life. And the use of retrac bits minimize the loss of impact energy during transmission. In addition, the advanced button fixing technology makes the fixing force uniform and not easy to loose buttons. Meanwhile, the use of retract drill bits also ensures the perpendicularity of the borehole, so that the impact energy is concentrated on the rock and the drilling efficiency is improved.