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Steel Solid Carbide 2 Flute Twist Drill Bit With Coolant Hole

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Address: No.105 Punan Street,Xixiashu Town ,Xinbei District,Changzhou City, Jiangsu Province,China

Contact name:Alice Zhong

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Solid Carbide 2 Flute Twist Drill Bit With Coolant Hole For Steel

Product Name	solid drill internal cold drill
Brand	SUPAL
Material	Solid Carbide, Tungsten Carbide
Type	drill
HRC	HRC45/55/60/65
Coating Type	ALTIN /TIALN /TISIN /NACO /DLC /Diamond
Suitable for	carbon steel / cast iron / stainless steel / alloy steel / titanium alloy / quenching piece / tool steel/ Al copper etc

Super Raw Material

Item Grade	HRC45 (YG10X )	HRC55 (YL10.2 & WF25)	HRC60 (Germany K44 &K40)	HRC65 (Sandvik H10F)
Details	Grain size 0.7um Co10% Flexural strength 3320N/mm2	Grain size 0.6um Co10% Flexural strength 4000N/mm2	Grain size 0.5um Co12% Flexural strength 4300N/mm2	Grain size 0.5um Co10% Flexural strength 4300N/mm2

Super Coating

Coating Classifying and Advantage
Item	Coating Type	AlTin	TiAlN	TiSiN	Naco
Characteristic	Hardness(HV)	3300	2800	4300	42(GPA)
	Thickness(UM)	2.5-3	2.5-3	3	3
	Oxidation Temp.(°C)	900	800	1000	1200
	Friction Coefficient	0.35	0.3	0.25	0.4
	Color	Black	Dark Purple	Copper	Blue
	Advantages	High heat stability	Normally cutting	Suitable for heavy cutting, and high hardness cutting	For high precision cutting
		Suitable for high speed, dry cutting		Suitable for cutting mould steel, stainless steel	Suitable for high hardness cutting, mould steel processing
		Most suitable for carbide cutting tools, turning insert

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