1.hss black grind twist drill bit 2.faster delivery time with good quality 3.various materil are supplied

hss black grind twist drill bit 

Details size Sunway could supply as following

For Metric Size Drill Bit

Size	Total Length	Cut Length		Size	Total Length	Cut Length		Size	Total Lengh	Cut Length
0.20	19	2.5		......				4.00	75	43
0.25	19	3		1.00	34	12		4.10	75	43
0.30	19	3		1.05	34	12		4.20	75	43
0.32	19	4		1.10	36	14		4.25	75	43
0.35	19	4		1.15	36	14		4.30	80	47
0.38	19	4		1.20	38	16		4.40	80	47
0.40	20	5		1.25	38	16		......
0.42	20	5		1.30	38	16		5.00	86	52
0.45	20	5		1.35	40	18		5.10	86	52
0.48	20	5		1.40	40	18		5.20	86	52
0.50	22	6		......				5.30	86	52
0.52	22	6		2.00	49	24		5.40	86	57
0.55	24	7		2.05	49	24		5.50	86	57
0.58	24	7		2.10	49	24		......
0.60	24	7		2.15	53	27		6.00	93	57
0.62	26	8		2.20	53	27		6.10	101	63
0.65	26	8		2.25	53	27		......
0.68	28	9		2.30	53	27		12.0	151	101
0.70	28	9		......				......

Not all the sizes are listed . The biggest size Sunway could supply is M20

Surface: For  iso235 stright shank hss drill bit , Sunway could fully ground it or roll forget. These are two major produce way in        Sunway and the performace for grind way is better than roll way.

Color:  Bright (Fully Grind without other process) , Black  , Golded ( TiN-Coated), Brown ( TiALN Coated) could be chosen.

Bright

Black

TiN

TiALN

iso235 twist jobber drill bit Bright and Black : These two kind of drills are most widely used in the world ,

iso235 twist jobber drill bit TiN Coated  : This kind coated taps is also be used widely. In our factory , there are two kind

 of TiN-Coated

 1. The surface TiN-Coated , this kind of TiN-Coated is for good looking and to avoid rust.

 2. The deep TiN-Coated, this kind of TiN-Coated could longer the life of the drill bits.

iso235 twist jobber drill bit TiALN coated : This coated make twist drills better performance in working and longer the life of the product.

Point Angle:  Two normal point angle of drills could be supplied in Sunway. 118° and 135 °

                       

118 degree

135 degree

this kind of twist drill , jobber lenght drill is the normal products in the market, if other special

style drill bit need to be produced, Sunway also could do, details please contact with Steven

Packing: The normal packing way of Sunway is plastic box (oil box) + inner box + carton size

                The carton size is : 33*26 *19 cm

Oil paper + inner box +carton

 Plastic box + inner box + carton

other specialized packing also could be supplied after supply us the detials.

Delivery Time : 45-50days after the order is confirmed.

Payment way: 30%T/T advance and others before shipment.