Non-sparking tools. They are mainly used in hazardous environment where flammable and combustible vapors liquids gas dusts are present, such as petroleum industry,chemical industry, power generation,railroad,and mining ects.These tools can avoid to rise sparking when tools strike, rub or collide with target in explosive atmosphere. There is two kinds of material, Beryllium Copper alloy and Aluminum Bronze.

 Details Of Offset Double Box End Wrench

Material: Alluminum-Bronze, Beryllium-Bronze
Aluminum-Bronze: 
1) Non Sparking Double Box Wrench Spanner
2) Hardness:25-30 HRC
3) Tensile Strength: 75-85kgf/Mm
Beryllium-Bronze: 
1)Non Sparking Material For Tools
2)Hardness: ≥ 35HRC
3)Tensile Strength: 105-120kgf/Mm

Technical Data Of Offset Double Box End Wrench

Item	Φmm	Inch	Weight£¨G£©	No.	Φmm	Inch	Weight£¨G£©
101	5.5*7	1/4*5/16	30	115	32*34	1-1/8*1-3/16	1040
102	6*7	5/16*3/8	30	116	32*36	1-3/16*1-1/4	1000
103	8*10	3/8*7/16	30	117	34*36	1-1/4*1-5/16	1000
104	9*11	7/16*1/2	70	118	36*38	1-5/16*1-3/8	1150
105	10*12	1/2*9/16	70	119	36*41	1-3/8*1-7/16	1160
106	12*14	9/16*5/8	90	120	38*41	1-7/16*1-5/8	1155
107	14*17	5/8*11/16	170	121	41*46	1-5/8*1-13/16	1420
108	16*18	11/16*3/4	220	122	46*50	1-13/16*2	2000
109	17*19	3/4*13/16	210	123	50*55	1-11/16*1-7/8	2330
110	19*22	13/16*7/8	310	124	55*60	2-3/16*2-3/8	2480
111	22*24	7/8*15/16	370	125	60*65	2-9/16*2-31/32	2500
112	24*27	15/16*1	470	Cangzhou Dean safety special tools CO.,LTD Free Member 0 Chinese Supplier Location:Cangzhou,Hebei,China Business Type: Main Products:non sparking tool ,non magnetic tool , special steel tools , insulation tools More+ Insulation resistance dean tools insulation adjustable wrench 1000V anfang insulating combination pliers , wire cutting pliers high quality tools steel insulating diagonal pliers Insulation hex key wrench allen key wrench 1000V Send Inquiry to This Supplier Title From* toAlice Message* Minimum Order Quantity* Unit 20' Container 40' Container 40' HQ Container Piece(s) Bag(s) Box(es) Foot(Feet) Meter(s) Pair(s) Ream(s) Roll(s) Set(s) Square Meter(s) Square Foot(Feet) Ton(s) Yard(s) Other Verification Code* Specialized Industries