Reverse Circulation RC Bits Src542

• After-sales Service: Yes
• Warranty: Yes
• Transport Package: Ply-Wooden
• Specification: 121mm-130mm
• Trademark: sollroc
• Origin: Made in China
• Model NO.: SRC542
• HS Code: 82071300
• Production Capacity: 10000/Month

Product Description

Product introduction
RC drilling refers to Dual Wall or Dual Tube Drilling.RC drilling applies two rods with inner and outer tubes.Air is blew down the annulus of the rod and enter into hammer and bit.Rock formation fragments crushed by bit are collected into the inter tube via air hole on the bit head.And then returned to the ground and enter into sampling system.

Characteristic
Sample is dry and without contamination
High penetration
High sample recovery rate

Technical parameters
RC bits Model RC4.5-SRC542 for shank SRC542

Diameter		Buttons*button diameter                 (mm)		Button angle	Flushing holes	Shroud Diameter	Weight (kg)	Part No.
mm	inch	Gauge	Centre
121	4 3/4	8x 14mm	8x 13mm	35	2	119	10.7	4.5-SRC542-121
124	4 7/8	8x 14mm	8x 13mm	35	2	122	10.9	4.5-SRC542-124
127	5	8x 14mm	8x 14mm	35	2	125	11.2	4.5-SRC542-127
130	5 1/8	8x 16mm	8x 14mm	35	2	128	11.5	4.5-SRC542-130