HSS Cobalt Drill Bit Set for Metal Stainless Steel Cast Iron Wood

• Customized: Non-Customized
• Standard: DIN
• Type: Twist Drill Bit
• 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.: 13PCS set
• Material: High Speed Steel
• Usage: Metal Drilling
• Surface: Gold
• Point: 135 Degree
• Prcocession: Fully Ground
• Flute: Type N
• Transport Package: PVC Bag
• Specification: 1-20mm
• Trademark: OEM
• Origin: Danyang, Jiangsu
• HS Code: 8207509000
• Production Capacity: 1000000PCS/Month
• Package Size: 40.00cm * 25.00cm * 18.00cm
• Package Gross Weight: 15.000kg

Product Description

DIN338 Straight Shank HSS Drill Bits with Amber Finished for Metal with Multi-blade design

 

Description of HSS Drill Bits:

• M42 Cobalt drill bit set for metal.Using unique process technology, each bit contains about 8% cobalt, which can easily handle common stainless steel materials and various light and medium metals
• Size - 1/16" 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 3/16" 11/64" 13/64" 7/32" 15/64" 1/4"
• Multi-blade tip-design,increase the pressure on the material when drilling, and it cuts faster and more smoothly than the general 135° drill.;thick web-helix design,fast cuts with smooth chip evacuation
• Applicable Materials - For Stainless Steel, Cast Iron, Titanium, Light Metals and Aluminum etc
• Applicable device - CNC machine, precision drilling machine, bench drill, medium and high power electric hand drill

High Speed Steel Tool Bits Specification:

1. Material and Hardness of HSS:

DESCRIPTION OF HSS	C	W	Mo	Cr	V	Co	Si	Mn	P	S
	%	%	%	%	%	%	%	%	%	%
W2MoCr4V(F4341)	0.95-1.05	1.7-2.4	0.8-1.2	3.8-4.4	0.8-1.2		1.0-1.4	0.2-0.4	<=0.03	<=0.03
W4Mo3Cr4V(4341)	0.88-0.98	3.5-4.5	2.5-3.5	3.8-4.4	1.2-1.8		0.5-1.2	0.2-0.4	<=0.03	<=0.03
W9Mo3Cr4V(9341)	0.77-0.87	8.5-9.5	2.7-3.3	3.8-4.4	1.3-1.7	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2(M2)	0.8-0.9	5.5-6.75	4.5-5.5	3.8-4.4	1.75-2.2	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2Co5(M35)	0.9-0.95	5.5-6.5	4.5-5.5	3.8-4.4	1.75-2.2	4.5-5.5	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W2Mo9Cr4V2Co8(M42)	1.05-1.15	1.15-1.85	9.0-10.0	3.5-4.25	0.95-1.25	7.75-8.75	0.15-0.65	0.15-0.4	<=0.02	<=0.025

2. Size:

D(mm)	L2(mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)
0.2	2.5	19	1.95	24	49	6	57	93	11.2	94	142
0.22	2.5	19	2	24	49	6.1	63	101	11.3	94	142
0.25	3	19	2.05	24	49	6.2	63	101	11.4	94	142
0.28	3	19	2.1	24	49	6.3	63	101	11.5	94	142
0.3	3	19	2.15	27	53	6.4	63	101	11.6	94	142
0.32	4	19	2.2	27	53	6.5	63	101	11.7	94	142
0.35	4	19	2.25	27	53	6.6	63	101	11.8	94	142
0.38	4	19	2.3	27	53	6.7	63	101	11.9	101	151
0.4	5	20	2.35	27	53	6.8	69	109	12	101	151
0.42	5	20	2.4	30	57	6.9	69	109	12.1	101	151
0.45	5	20	2.45	30	57	7	69	109	12.2	101	151
0.48	5	20	2.5	30	57	7.1	69	109	12.3	101	151
0.5	6	22	2.55	30	57	7.2	69	109	12.4	101	151
0.52	6	22	2.6	30	57	7.3	69	109	12.5	101	151
0.55	7	24	2.65	30	57	7.4	69	109	12.6	101	151
0.58	7	24	2.7	33	61	7.5	69	109	12.7	101	151
0.6	7	24	2.75	33	61	7.6	75	117	12.85	101	151
0.62	8	26	2.8	33	61	7.7	75	117	12.9	101	151
0.65	8	26	2.85	33	61	7.8	75	117	13	101	151
0.68	9	28	2.9	33	61	7.9	75	117	13.1	101	151
0.7	9	28	2.95	33	61	8	75	117	13.2	101	151
0.72	9	28	3	33	61	8.1	75	117	13.3	108	160
0.75	9	28	3.1	36	65	8.2	75	117	13.4	108	160
0.78	10	30	3.2	36	65	8.3	75	117	13.5	108	160
0.8	10	30	3.3	36	65	8.4	75	117	13.6	108	160
0.82	10	30	3.4	39	70	8.5	75	117	13.7	108	160
0.85	10	30	3.5	39	70	8.6	81	125	13.8	108	160
0.88	11	32	3.6	39	70	8.7	81	125	13.9	108	160
0.9	11	32	3.7	39	70	880	81	125	14	108	160
0.92	11	32	3.8	43	75	8.9	81	125	14.25	114	169
0.95	11	32	3.9	43	75	9	81	125	14.5	114	169
0.98	12	34	4	43	75	9.1	81	125	14.75	114	169
1	12	34	4.1	43	75	9.2	81	125	15	114	169
1.05	12	34	4.2	43	75	9.3	81	125	15.25	120	178
1.1	14	36	4.3	47	80	9.4	81	125	15.5	120	178
1.15	14	36	4.4	47	80	9.5	81	125	15.75	120	178
1.2	16	38	4.5	47	80	9.6	87	133	16	120	178
1.25	16	38	4.6	47	80	9.7	87	133	16.25	125	184
1.3	16	38	4.7	47	80	9.8	87	133	16.5	125	184
1.35	18	40	4.8	52	86	9.9	87	133	16.75	125	184
1.4	18	40	4.9	52	86	10	87	133	17	125	184
1.45	18	40	5	52	86	10.2	87	133	17.25	130	191
1.5	18	40	5.1	52	86	10.3	87	133	17.5	130	191
1.55	20	43	5.2	52	86	10.4	87	133	17.75	130	191
1.6	20	43	5.3	52	86	10.5	87	133	18	130	191
1.65	20	43	5.4	57	93	10.6	87	133	18.5	135	198
1.7	20	43	5.5	57	93	10.7	94	142	18.75	135	198
1.75	22	46	5.6	57	93	10.8	94	142	19	135	198
1.8	22	46	5.7	57	93	10.9	94	142	19.25	140	205
1.85	22	46	5.8	57	93	11	94	142	19.5	140	205
1.9	22	46	5.9	57	93	11.1	94	142	19.75	140	205
									20	140	205

Specification of HSS drill bits:
Multi-blade Design:
Accurate Positioning,Faster and Smoother cutting
How to use:
 

Take care to cool down · When you drill deeper and deeper, the temperature at the bottom of the material will become higher and higher. At this time, reducing the speed and injecting water will have better cooling effect · The use of water to cool the drill bit in the work process will visibly extend the life of the drill bit

Vertical operation · Try to stay vertical when you work with a hand drill · Vertical operation can make the blade tip evenly stressed, which can avoid damage to the blade tip due to uneven force · When drilling hard metals such as stainless steel and other hard metals, vertical operation is very important, and conditions permitting can use a bench drill to work, which is more efficient and will not damage the drill bit

Pay attention to control speed and pressure · When drilling hard metals, use low speed and low pressure drilling methods · The thicker the material to be drilled, the lower the rotational speed is, and the larger the diameter of the drilled hole, the lower the rotational speed is. · When drilling hard metals, if the speed and pressure cannot be controlled in place, even the best drill will be damaged

Precautions of HSS Drill Bits

· When using the handheld drill, keep the drill with the drilling material vertically

· During the drilling process, you need to inject the coolant to cool the drill. If there is no coolant, water or oil is all possible, timely reducing the drill temperature can extend the drill life

· When you drill on the stainless steel, you should adopt a high pressure and low speed method. You can first use a tool (nail or open -hole) on the surface of the stainless steel. Turn the drill, remember not to drill the hole all the time, this is very easy to damage the drill bit. You need to drill for a while and then stop and inject the coolant. After the drill bit cools down, continue drilling,doing this allows you to get the most out of your drill

· If you need to drill large quantities of stainless steel, it is better to choose a bench drill to drill

· When the equipment is better, the higher the processing hardness of the processing, the more you can use the full performance of the drill.

· There is no drill bit that will not wear. We can only ensure that our drill bit will not be broken and damaged in the operation project.However, if you have equipment for sharpening the blade, when the top of the bit becomes dull due to wear, you can use the sharpener to sharpen the top edge of the bit and continue to use it until the whole bit is consumed

Package:

1. Normal Package:5/10 pcs in a plastic bag,then inner box and out carton.

2. Other package:Blister card,Plastic tube,PVC pouch,according to your requirments.

3. HSS Drill bits set are available.