1mm 2.4mm 3.2mm 4.9 M35 Cobalt Titanium Metal Drill Bit HSS 4mm HSS Twist Drill Bits for Metal Drilling

• Standard: DIN
• Working Length: 100mm
• Precision: 0.01mm
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DS Drill Bit
• Transport Package: Plastic Box
• Trademark: DS
• Origin: China
• HS Code: 8208109000
• Production Capacity: 100000/Year
• Package Size: 10.00cm * 10.00cm * 5.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

 

Procuct Name	HSS-Co Twist Drill bit
Material	M35, M2, HSS 4241, HSS 4341
Process	Roll forged, fully ground, milled
Size	Normal standard: 0.2~20mm / or as your requirement.
Flute Type	Type N, Right Hand Cutting
Point Angle	118 Degree, 135 Degree
Surface Finish	Amber Color, Black Oxide, Black & White, Gray & Bright, Bright, TiN Coated
Usage	Suitable for drilling all kinds metal
Package	5pcs/10pcs in Plastic Box.
HSS Cobalt drill bits	(1) Heavy-duty construction for drilling in tough, high-tensile and work-hardening materials under extreme operation conditions
	(2)Manufactured from premium 5% cobalt high speed steel increasing hot hardness and extending drill wear life
	(3)135°split-point is self-centering for reduced thrust and easier penetration
	(4)Ideal for drilling hard material such as stainless steel

Drill points between normal 118°and 135° split point:

1. 118°point angles are used primarily in softer material such as mild steels and cast irons.
2. 135°split point should be used to cut harder steel materials and especially in deep holes over 4 times the drill diameter. With a 135°split point, cutting harder materials will produce thicker chips, minimizing work hardening of the cavity short.
The length of the lips on a 135°split point, measured from the axis to the cuter corners, is relativity short. This enables quicker penetration into the workpiece and reduces thrust and abrasion along the cutting edges.
3. When repointing a standard 118°point to 135°,make a lip correction to reduce the hook of the cutting face.

D(mm)	L1	L	D(mm)	L1	L	D(mm)	L1	L
0.2	2.5	19	5.3	52	86	10.4	87	133
0.3	3	19	5.4	57	93	10.5	87	133
0.4	5	20	5.5	57	93	10.6	94	142
0.5	6	22	5.6	57	93	10.7	94	142
0.6	7	24	5.7	57	93	10.8	94	142
0.7	9	28	5.8	57	93	10.9	94	142
0.8	10	30	5.9	57	93	11	94	142
0.9	11	32	6	57	93	11.1	94	142
1	12	34	6.1	63	101	11.2	94	142
1.1	14	36	6.2	63	101	11.3	94	142
1.2	16	38	6.3	63	101	11.4	94	142
1.3	16	38	6.4	63	101	11.5	94	142
1.4	18	40	6.5	63	101	11.6	94	142
1.5	18	40	6.6	63	101	11.7	94	142
1.6	20	43	6.7	63	101	11.8	94	142
1.7	20	43	6.8	69	109	11.9	101	151
1.8	22	46	6.9	69	109	12	101	151
1.9	22	46	7	69	109	12.1	101	151
2	24	49	7.1	69	109	12.2	101	151
2.1	24	49	7.2	69	109	12.3	101	151
2.2	27	53	7.3	69	109	12.4	101	151
2.3	27	53	7.4	69	109	12.5	101	151
2.4	30	57	7.5	69	109	12.6	101	151
2.5	30	57	7.6	75	117	12.7	101	151
2.6	30	57	7.7	75	117	12.8	101	151
2.7	33	61	7.8	75	117	12.9	101	151
2.8	33	61	7.9	75	117	13	101	151
2.9	33	61	8	75	117	13.1	108	160
3	33	61	8.1	75	117	13.2	108	160
3.1	36	65	8.2	75	117	13.3	108	160
3.2	36	65	8.3	75	117	13.4	108	160
3.3	36	65	8.4	75	117	13.5	108	160
3.4	39	70	8.5	75	117	13.6	108	160
3.5	39	70	8.6	81	125	13.7	108	160
3.6	39	70	8.7	81	125	13.8	108	160
3.7	39	70	8.8	81	125	13.9	108	160
3.8	43	75	8.9	81	125	14	108	160
3.9	43	75	9	81	125	14.5	114	169
4	43	75	9.1	81	125	15	114	169
4.1	43	75	9.2	81	125	15.5	120	178
4.2	43	75	9.3	81	125	16	120	178
4.3	47	80	9.4	81	125	16.5	125	184
4.4	47	80	9.5	81	125	17	125	184
4.5	47	80	9.6	87	133	17.5	130	191
4.6	47	80	9.7	87	133	18	130	191
4.7	47	80	9.8	87	133	18.5	135	198
4.8	52	86	9.9	87	133	19	135	198
4.9	52	86	10	87	133	19.5	140	205
5	52	86	10.1	87	133	20	140	205
5.1	52	86	10.2	87	133
5.2	52	86	10.3	87	133

FAQ

 

Q1. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you do the rest payment.

Q2. What are your terms of delivery?
A: EXW, FOB, CFR, CIF, ETC.

Q3. How about your delivery time?
A: Generally, It will take 10-15 days after receiving your advance payment.
    The specific delivery time depends on the items and the quantity of your order.

Q4. Do you provide samples ? is it free or extra ?
A: Yes, we could offer our stock sample for free charge and you please pay the cost of freight.
    Custom cutting tools negotiated then we will quote the best sample cost.