R28 Top Hammer Rock Drilling Thread Button Bit for Mining

• Certification：ISO 9001:2000
• Standard：GB, GOST
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Color：on Request

=== Base Info ===

• Model NO.：R28
• Condition：100% New
• Processing Type：Forging
• Matched Rod：mm,Mf Rod
• Transport Package：Carton
• Specification：37-48MM
• Trademark：SANSUNG
• Origin：China
• HS Code：82071300
• Production Capacity：30000 PCS,Year

=== Description ===
Thread Button BitDiameterCarbide size(mm)Flushing holeWeightmminFrontGaugeFrontSide(kg)Qty×sizeQty×size

R28(1 1/8")

351  3/82×75×8110.44381 1/22×75×9110.56411  5/82×85×9120.61451  3/42×85×10120.78481  7/82×95×11120.85122×105×11121.18572  1/42×105×12121.26

 

Reaming toolsDFlushing hole (mm)Buttons (mm)mminchFrontGaugeFrontGauge

Pilot  bit 6° taper

401 37/642×52×5.52×84×9

Reaming  bit 6° taper  

763---8×11

 

Drill rod (R28)Lmmftinch

Hex  rod 28 with thread R28/ R32

28009231001023700122

Hex  rod 32 with threads R28/ R32  

4310142

 

Coupling sleeve(R28)
 LDmminch

R32-R28
 

160411 5/8

Crossover  coupling R28-R32

 

171451 3/4