5% Cobalt Fully Ground Twist Drill Bit

• Customized: Customized
• Standard: DIN, JIS, AISI, API
• Length: Taper-length
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Model NO.: CNTN00350
• Shank: Round
• Product Package: Blister Card
• Diameter: 1~13mm
• Delivery: 30~45 Days
• Transport Package: Carton
• Trademark: YOUR BRAND
• Origin: China
• HS Code: 8207509000
• Production Capacity: 1000000 Pieces/Year

Product Description

Drill bit for the precise drilling of steels and cast irons, thanks to its self-centring cut.

Properties and benefits:

1.Split-point grinding:reduction of the drill tip.
2.Enables the simple self-centring of the drill bit on the smoothest of surfaces. Significantly reduces the requried axial load.
3.135° tip: 135° tip angle for the sharpening of the drill bit.
4.Suitable for strong and difficult materials. Enables a shorter and stronger cutting edge, thus prolonging the service life.
5.Cylindrical shank: the diameter of the shank is equal to the diameter of the tip.
6.Enables versatile use on portable electrical tools and CNC machine tools.
7.30° type N flute: normal flute profile with a 30° helix angle.
8.Suitable for general use. Provides good rigidity to the tool, as well as excellent drilling precision.
9.5% cobalt high-speed steel: HSS substrate enriched with 5% cobalt. Improved heat retention (strength, cutting sharpness)
10.For general use in metals up to 1200 N/mm².

Technical Specifications:

 

DIAMETER	D2/CM	L	l
1	1	34	12
1.5	1.5	40	18
2	2	49	24
2.5	2.5	57	30
3	3	61	33
3.5	3.5	70	39
4	4	75	43
4.5	4.5	80	47
5	5	86	52
5.5	5.5	93	57
6	6	93	57
6.5	6.5	101	63
7	7	109	69
7.5	7.5	109	69
8	8	117	75
8.5	8.5	117	75
9	9	125	81
9.5	9.5	125	81
10	10	133	87
10.5	10.5	133	87
11	11	142	94
11.5	11.5	142	94
12	12	151	101
12.5	12.5	151	101
13	13	151	101

 

Application:

 

Widely Uesd:

 

Related Surface Treatment:

 

Related Packaging: