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| Categories | Retractable Drill Bit | 
|---|---|
| Brand Name: | MIROC Retract Button Bit | 
| Model Number: | ST68 Thread Retract Button Bit | 
| Place of Origin: | China | 
| MOQ: | 10 Pieces Retract Button Bit | 
| Price: | Negotiable | 
| Supply Ability: | 20000 pieces per month | 
| Delivery Time: | 25 days | 
| Packaging Details: | Carton Box or Wooden Box | 
| Certification: | ISO | 
| Product: | Retract Button Bit | 
| Thread: | ST68 | 
| Body Type: | Retract | 
| Material: | 45CrNiMoVA | 
| Application: | For Mining, Quarry, Tunelling | 
| Weight: | 9.3kg-17.8kg | 
| Company Info. | 
| KSQ Technologies (Beijing) Co. Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
ST68 4 Inch 5 Inch 6 Inch Retract Button Bit Design To Improve Hole Straightness
Retract Skirt
For unconsolidated rock formation.
Designed to improve hole straightness, as well as to assist in retrieval of the drilling string.
The splines will also improve the hole flushing characteristics of the bit due to the chip ways between the splines.
| ST68 Retrac Button Bit | ||||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | Part Number | ||||
| mm | inch | Front | Gauge | Angle | Front | Side | kg | |
| Spherical | ||||||||
| 102 | 4 | 4x12, 4x12 | 10x12 | 35° | 4 | - | 9.3 | 4148301024 | 
| 102 | 4 | 4x14, 2x12 | 8x14 | 35° | 4 | - | 9.3 | 4148301025 | 
| 110 | 4 1/3 | 6x14 | 8x16 | 35° | 2 | - | 10.0 | 4148301026 | 
| 115 | 4 1/2 | 6x14 | 8x16 | 35° | 2 | - | 10.0 | 4148301027 | 
| 127 | 5 | 8x14 | 9x16 | 35° | 3 | - | 15.0 | 4148301028 | 
| 140 | 5 1/2 | 9x14 | 9x16 | 35° | 3 | - | 17.8 | 4148301029 | 
| Ballistic | ||||||||
| 102 | 4 | 4x12, 4x12 | 10x12 | 35° | 4 | - | 9.3 | 4148301030 | 
| 102 | 4 | 4x14, 2x12 | 8x14 | 35° | 4 | - | 9.3 | 4148301031 | 
| 110 | 4 1/3 | 6x14 | 8x16 | 35° | 2 | - | 10.0 | 4148301032 | 
| 115 | 4 1/2 | 6x14 | 8x16 | 35° | 2 | - | 10.0 | 4148301033 | 
| 127 | 5 | 8x14 | 9x16 | 35° | 3 | - | 15.0 | 4148301034 | 
| 140 | 5 1/2 | 9x14 | 9x16 | 35° | 3 | - | 17.8 | 4148301035 | 
Competitive Advantage
High strength chromium-molybdenum steel with high fatigue strength
and excellent wear resistance


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