GOVERNMENT OF INDIA
DEPARTMENT OF COMMERCE (SUPPLY DIVISION)
DIRECTORATE OF SUPPLIES & DISPOSALS
'SHASTRI BHAVAN', 4^th FLOOR
26, HADDOWS ROAD, NUNGAMBAKKAM
CHENNAI - 600 006
Telephone No.: +91-044-2827 3721/28275154		Fax No.: +91-044-28280152
http://dgsnd.tn.nic.in		E-mail:dsnd@tn.nic.in
Rate Contract No.:CH-3/RC-13041405/022004/ DTH BITS/2004-05/BEAVER/1/031/DCOAC		Dated 18.03.2004
To M/s. Beaver Engineering Corporation, Unit No.10, Electronic Complex, Kushaiguda, HYDERABAD-500 062.
Subject:	Rate Contract for supply of BUTTON BITTS valid From 28.02.2004 to 31.03.2005.
Reference:	This office tender enquiry no. CH-3/RC-13041405/022004/ BUTTON BITS/2004-05/ opened on 05.11.03. Your Quotation no. BEC/DGS&D/RC/2004-05/5/11dated 25.10.2003 and subsequent letters BEC/DGS&D/RC/04-05/Button Bits Dated 03.12.03, 31.12.03 & your Fax dated 04.02.2004.
Dear Sirs,
You are hereby informed that your above referred tender read with subsequent letters mentioned above for the stores specified in the Schedules annexed has been accepted. This Rate Contract will be governed by the terms and conditions brought out in the form no. DGS&D-1001. The Rate Contract and the Schedules annexed hereto shall be the sole repository of this RATE CONTRACT / TRANSACTION.
Schedules annexed:
Schedule ‘A’ - Description of Stores, prices, duties/taxes Schedule ‘B’ - Special Conditions of Contract Schedule ‘C’ - Information to DDOs about parallel Rate Contracts
Yours faithfully,
( C. ARUMUGAM ) Assistant Director (Supplies ) For and on behalf of the Purchaser(s) named in the form DGS&D - 1001

Copy to:

1. The Deputy Controller of Accounts, Department of Commerce (Supply Division), Chennai.

(Through Authentication Cell)

2. Directorate General of Supplies & Disposals, New Delhi
3. Deputy Director General of Supplies & Disposals, Kolkata
4. Deputy Director General of Supplies & Disposals, Mumbai
5. Deputy Director General (QA), Chennai
6. Deputy Director General (QA), Kolkata
7. Deputy Director General (QA), Mumbai
8. Deputy Director General (QA), DGS&D, New Delhi
9. Inspection Authority – ADG(QA), DGS&D., New Delhi.
10. Quality Assurance Officer – Director (QA), Hyderabad
11. Concurrent Audit
12. MIS Cell
13. Ledger Clerk
14. O.L. Section
15. All Direct Demanding Officers as per mailing list maintained
16. CDN section
17. Master Folder
18. Computer Section

	SCHEDULE ‘A’
	1	Rate Contract No. CH-3/RC-13041405/022004/ DTH BITS/2004-05/BEAVER/1/031/DCOAC dated 18.03.2004 for the supply of BUTTON BITS.
	2	Advance Rate Contract No. CH-3/RC-13041405/022004/ DTH BITS/2004-05/EAVER/1/031/ DCOAC dated 12.02.2004.
	3	a)		Name and full address of the firm:			M/s. Beaver Engineering Corporation, Unit No.10, Electronic Complex, Kushaiguda, HYDERABAD-500 062.
				Telephone No.:			040-27121344 – 27123785
				Telex No.:			---
				Fax No.:			040-27124483
				E-mail address:			---
		b)		Name and address of manufacturer:			Same as above.
				Telephone No.:			040-27121344 – 27123785
				Telex No.:			---
				Fax No.:			040-27124483
	4	Validity of Rate Contract:					From 28.02.2004 to 31.03.2005
	5	Description of item, specification, unit rate, etc.
	Item No.					Description of item			Unit	Rate per unit
	a.					105 mm (4⅛”) Button Bits			Each	4,400.00
	b.					115 mm (4½”) Button Bits			Each	4,735.00
		The above Button Bits suitable to work with Hammer Model 4” Class valved and valveless Models Panther, Cop-4, Cop-42, Mech 4, DHD 4, DH 4C, DHD 14, IR QL4/40, DHD 340 etc.
c.					152 mm (6”) Button Bits			Each			9,860.00
d.					165 mm (6½”) Button Bits			Each			10,425.00
e.					203 mm (8”) Button Bits			Each			13,955.00
f.					215 mm (8 ½”) Button Bits			Each			14,475.00
		The above Button Bits suitable to work with Hammer Model 6” Class valved and valveless Models suitable to Bison, DHD 16A, DHD 160/360, IR QL 60/6, Mission Mega, RD6, SD-6, COP-6, Mach 6 and 62 Beaver.
		Technical Specification					As per Annexure-A enclosed.
	6	Terms of delivery:					F.O.R. Destination including Packing, Forwarding and Freight.
	7	Excise Duty:					Nil.
	8	Sales Tax:					CST will be charged extra at 4% against submission of Form C/D otherwise 10%.
	9		Delivery period:				30 days from the date of receipt of firm order.
	10		Annual turn over/Monetary limit:				No Monetary limit.
	11		Slab discount, if any:				Not applicable.
	12		Prices:				Prices are Firm and Final
	13		Minimum quantity in single supply order:				Not applicable.
	14		Status of Rate Contract holding firm:				SSI
	15		Paying Authority:				Deputy Controller of Accounts, Department of Commerce (Supply Division), Shastri Bhavan, 26, Haddows Road, Chennai-600 006.
	16		Inspection Authority				Additional Director General (QA), Directorate General of Supplies & Disposals, ‘Jeevan Tara Building’, 2^nd Floor, 5, Sansad Marg, New Delhi – 110 001
	17		Quality Assurance Officer:				The Director of Quality Assurance, Kendriya sadan, Ground Floor, Sultan Bazar, HYDERABAD-500195. or his authorised representative
	18		Place where the stores are to be tendered for inspection:				M/s. Beaver Engineering Corporation, Unit No.10, Electronic Complex, Kushaiguda, HYDERABAD-500 062.

SCHEDULE - “B”
The following amendments are made in the provisions of Form DGS&D-1001:
A.	The existing Para 2.2 of DGS&D-1001 will now read as under :-
2.2		This Rate Contract will be operated by the Indentors of the Central Govt. to be called as the Direct Demanding Officers (DDOs.) in addition to the Officers of the DGS&D. There will not be a separate list of DDOs specifying particulars / Ministry / Department of an Indentor of the Central Govt. as a DDO for operating DGS&D Rae Contracts. It would be sufficient if the supply order placed by any Central Govt. Ministry, Department or the office of the Central Govt. contain an Undertaking to the effect that the authority placing the supply order is a Central Govt. Department / Office.
B.	Add the following after clause 3. 1. as Clause 3.1.1.
3.1.1.		The Supply order placed by the DDOs in DGS&D Form No.131 may also Include an indication with regard to the availability of funds and also carry the following Financial Certificate :- I Certify that :- a) We are a Central Government Department drawing Funds from the Consolidated Fund of India. b) The expenditure involved for this purchase has received the Sanction of the Competent Financial Authority. c) The funds are available under the proper Head in the sanctioned Budget Allotment for the year ……………………… and ; d) I have been fully authorized by the Department to sign the Supply Order and incur the liability in respect of the stores being ordered.
NAME OF THE DIRECT DEMANDING OFFICER : DESIGNATION : OFFICE/DEPARTMENT : DATE :
		Placement of indents by the Department other than the Central Government Departments will be with pre-deposit of requisite funds by Demand Draft or Crossed cheque drawn on the Reserve Bank of India/State Bank of India duly marked “on Government Account only” in favour of the Deputy Controller of Accounts, Department of Commerce (Supply Division), Chennai.
C.	Add a new clause i.e. clause-24 as given below :-
	Clause – 24 : REVOCATION/CANCELLATION OF RATE CONTRACT :- Since the R/C is a standing offer and is merely a document embodying various terms of the standing offer made by the contractor for acceptance by the Purchaser either party viz. R/C holder /Purchaser can legally revoke /cancel the Rate Contract at any time during the currency of the Rate Contract giving a notice of 45 days. The revocation of Rate Contract on the part of the R/C holder shall take effect 45 days from the date of communication of revocation is received by the purchaser. The cancellation of the Rate Contract by the Purchaser shall take effect 45 days from the date of issue of letter notifying the short closure.
( C. ARUMUGAM ) Assistant Director (Supplies) For & on behalf of the Purchasers named in the form DGS&D-1001.

SCHEDULE ‘C’

(DETAILS OF PARALLEL RATE CONTRACTS FOR THE INFORMATION OF DIRECT DEMANDING OFFICERS)

Sl. No.	Name of the parallel Rate Contract holder	Parallel Rate Contract no. & date	Validity
			from	to
01	M/s. Dyna Drill Equipments Pvt. Ltd.,Plot No. 2, Ferozgnda, Bowenpally Post, SECUNDERABAD – 500 011.	No. CH-3/RC-13041405/ 022004 /DTH BITS/2004-05/ DYNA/ 2/ 036/DCOAC Dated /03/2004	28.02.2004	31.03.2004
02	M/s. Alladi Drilling Equipments Pvt. Ltd., Plot No.84, I.D.A., Phase – II, Cheriapally, HYDERABAD – 500051.	CH-3/RC-13041405/022004/ 2004–2005/DTHBits/ ALLADI /060/3/DCOAC dated /03/2004	18.03.2004	31.03.2005

TECHNICAL REQUIREMENTS FOR DOWN THE HOLE DRILL BITS (ANNEXURE- A)
1.	Button bits of size 105 mm (4-1/8”), 115 mm (4-1’2”), 152 mm (6”), 165 mm (6-1/2”), 203 mm (8”) and 215 mm (8-1/2”) placed in a geometrical pattern for maximum rock fracture so as to provide higher penetration rate and extended bit life with reduced sharpening of bits with minimum gauge wear.
2.	Button bits shall be suitable for use in down the hole pneumatic hammers for water well drilling in hard rock formation with drilling rigs generally conforming to IS:11830 (Part 1) 91 or IS:11830 (Part 2) 89, the tenderers shall declare the data as per Annexure II enclosed, failing which their offer shall be ignored.
3.	Button bits shall be compatible with different popular models of hammer as shown in Table-I.
4.	Hardness: At shank 50 to 65 HRC, At core 40 to 45 HRC.
5.	Button bits shall be fitted with adequate no. of Tungsten Carbide Tips. The no. of TC tips provided shall be declared by the tenderer, however, the recommended material of DTH Button bits shall be EN-36 with the hardness mentioned above.
6.	Material specification used for the manufacture of bits shall also be declared.
7.	Guarantee: A minimum drilling depth of 300 meters per bit in hard rock formation shall be guaranteed, for this purpose, records maintained in the Log Book of the consignee shall form the basis.
8.	The manufacturer will indicate the re-grinding procedure/instructions.
9.	Tenderers shall furnish the drawing/design of bits, clearly highlighting the basic parameter i.e., type and profile of spline, shank size. Foot valve suitable for valeless hammer of valved hammer with adequate number of tungsten carbide buttons.
10.	Along with their offers, the tenderers shall submit a satisfactory Performance Certificate either by OEM or by Govt. bulk users.
	The supplier should be solely responsible to ensure the total compatibility of the equipment with O.E.M. which should be identical.
	If it is established that the material used or the construction is not similar to OEM, contractor should be liable for free replacement of the equipment.

T A B L E – I

Compatible Model		Range of Hole Dia (In mm)	Max.Air consumption at 10.5 KG/Cm2	Range of operating Air pressure (In KPs)	Frequency strokes (No. of Blows per Minutes	Min.weight of Hammer without Bits (In Kg.)
A. INGERSOLL RAND:
i.	DHD – 4	105 to 114	7.9	550 to 2413	1250 at 860 KPa and 2100 at 2413 KPa	34.9
ii.	DHD – 4C	-do-	5.5	-do-	1300 at 860 Kpa and 1900 at 2413 Kpa	38.5
iii.	DHD – 14	102 to 115	5.6	690 to 862	**	31
iv.	DHD- 16A	150 to 203	9.19	-do-	**	86
v.	DHD-160	150 to 165 (and 203 to 216 in over burden)	10.1	550 to 2413	1150 at 868 KPa and 1800 at 2413 KPa)	106
vi.	DHD-360	-do-	8.2	1035 to 2413	1300 at 1035 KPa and 1800 at 2413 KPa	10.6

B. ATLAS COPCO
i.	COP – 4	100 to 115 (and 152 to 165 in over burden)	6.58	550 to 1800	**	27.5
ii.	COP – 6	150 to 165 (and 203 to 216 in over burden)	12.8	-do-	**	92
C. MISSION
i.	A.34-15	105 to 115	11.5	690 to 1795	**	**
ii.	B. 53-15	150 to 165 (and 203 to 216 in over burden)	18.6	-do-	**	**
** These have to be declared by the Tenderers in the Quotations.

ANNEXURE-B
1.	MATERIAL :
	A.	STEEL:
		a.	Material used for Button Bits is EN 36 C Grade
		b.	Type of Hardness : Case Hardening Case Depth : 1.5 mm to 2.0 mm
	B.	TUNGSTON CARBIDE BUTTONS :
		a.	No. of Buttons : Separate Annexure enclosed.
		b.	Original test certificates from the Button Manufacturers will be furnished along with the supply.
2.	TESTING FACILITIES :
	Raw Material			Chemical composition Ultrasonic for crack detection.
	Forgings			Crack Detection, ultrasonic, hardness testing after machining and after heat treatment.
3.	Dimensional drawings and catalogues will be submitted to the Inspector at the time of Inspection.
4.	4” Class			Panther, Cop 4, Cop 42, Mach 4, DHD 4, DHD 14, IR QL 4/40, DHD 4C, DHD 340 etc.
	6” Class			Bison, DHD 16A, DHD 160/360, IR QL 60/6, Mission Mega, RD 6, SD 6, COP 6, Mach 6 and 62 Beaver.
5.	Material used for Button Bits is EN 36C as per the following composition.
	Carbon (c)			0.12/0.18
	Silicon (si)			0.10/0.35
	Mangnese (Mn)			0.30/0.60
	Nickel (Ni)			3.00/3.75
	Chromium (Cr)			0.60/1.10
	Moly (Mo)			0.10/0.25

ANNEXURE-C
TECHNICAL SPECIFICATIONS
Button Bit bodies are made from High Quality Special Alloy Steel Forgings. The bit bodies are Heat Treated for high resistance and abrasion and wear and also to withstand high degree of repeated stresses, impact load fatigue that are encountered during drilling in different formations.
High Quality (Pre-tested and certified at Manufacturer’s works Tungston Carbide Buttons (inserts) are procured from reputed manufacturers. The Buttons are ground to close tolerances and are hydraulically pre-fitted, maintaining proper interferences. The properties/grade of Tungston Carbide Buttons are so choosen as to provide for maximum drilling life, in accordance with the formation drilled.
The placement of Buttons on the face and guage allows full coverage of Button Bit Diameter and face. The location and placement of flushing grooves and holes ensure maximum flushing efficiency for better overall drilling economy.
MATERIAL			BODY : EN 36C Alloy Steel Forgings
BUTTONS			Tungston Carbide
FLUSHING HOLES			As detailed in the Catalogues.
DETAILED SPECIFICATIONS OF BUTTONS
TYPE	Button Bits suitable to : Panther, Cop 4, Cop 42, Mach 4, DHD 4, IR QL 4/40, DHD 14, DHD 4C, DHD 340 etc.
Size	Dia of Button (mm)	Length of Button			No. of Buttons
		Face (mm)		Guage (mm)	Face (Nos.)	Guage (Nos.)
a) 105 mm (4 1/8”)	13	19		14 Ø 22	6	6
b) 115 mm (4 ½”)	13	19		14 Ø 22	6	8
TYPE	Button Bits suitable to : WD BISON, DHD 16A, DHD 160/360 QL 60/6, MISSION MEGA, RD 6, SD 6 COP 6 MAC 6 etc. Flat Face/Drop Centre
Size	Dia of Button (mm)	Length of Button			No. of Buttons
		Face (mm)		Guage (mm)	Face (Nos.)	Guage (Nos.)
c) 152 mm (6”)	16	21		28	9	8
d) 165 mm (6 ½”)	16	21		28	10	8
e) 203 mm (8”) f) 215 mm (8 ½”)	16 16	21 21		28 28	10 11	12 12
The patterns of Buttons and numbers are same for all type Button Bits suitable to various hammers.

HEAT TREATMENT PROCEDURE FOR BUTTON BITS
1.	Stress relieving after machining, flushing holes drilling and Milling operations.
2.	Gas Cynade salt bath carbusising to case depth of minimum 1.5 mm with .75% to .85% carbon potential.
3.	Cooled to room temperature in closed pit.
4.	Skin cutting of carburized face and guage button areas to required depth.
5.	Heated to 820º C temperature in neutral salt bath with 2 hour soaking time and quenched in oil at 40º to 60º.
6.	Hardness checked for desired values i.e. 55 to 60 H.R.C. on shank (body) and 37 to 43 H.R.C. on core (Face).
7.	Tempering carried out for a period of 4 to 6 hours at 100 to 180º C.
8.	Random check carried out on the Button Bit bodies for detecting quench cracks with the help of magnaflux magnatec particle inspection and Ultrasonic test with Micro scan Ex 10 Flow detector, with microprocessor controller.