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WC Indexable U Drill Adjustable 4mm/10mm/12mm/26mm U Drill Deep Hole Bit

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Shenzhen Bwin Precision Tools Co., Ltd.

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26mm U Drill Deep Hole Bit

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Brand Name :	BWIN
Model Number :	C20-2D16-35SP06
Price :	Negotiable
Payment Terms :	T/T, Western Union
Supply Ability :	1-10000pcs 7days
Delivery Time :	7 work days

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Product Details
Company Profile

WC Indexable U Drill Adjustable 4mm/10mm/12mm/26mm U Drill Deep Hole Bit

WC Fast U Drill 3 Times Diameter Indexable Adjustable 4mm/10mm/12mm/26mm U Drill Deep Hole Bit

Description of WC U drill

The WC U-drill is made of high hardness H13 steel and undergoes quenching, carburizing, grinding and other processes to make the U-drill; More sturdy and durable; Innovative spiral groove design, with an inner and outer groove ratio of 6:4; Smooth chip removal, less prone to chip blockage; Internal cooling double spiral water outlet, widened water outlet, larger flow rate, better cooling effect, updated blade angle, making cutting more efficient.

U-drill cutting condition table

U drill cutting condition
workpiece	Shank Dia(mm)	Feed rate(mm/rev)
workpiece	Shank Dia(mm)	2D	3D	4D	5D
45 # steel/S45C Recommended cutting speed 85-130-170(m/min)	D13.0-D18.0	0.07-0.12-0.22	0.07-0.11-0.19	0.07-0.10-0.16	0.006-0.09-0.14
	D18.5-D29.0	0.07-0.12-0.22	0.07-0.11-0.19	0.07-0.10-0.16	0.006-0.09-0.14
	D29.5-D36.0	0.07-0.13-0.24	0.07-0.12-0.20	0.07-0.10-0.16	0.006-0.09-0.14
	D37.0-D55.0	0.08-0.15-.027	0.08-0.13-0.22	0.08-0.13-0.20	0.07-0.10-0.16
	D36.0-D68.0	0.09-0.16-0.30	0.09-0.15-0.25	0.09-0.14-0.21	0.08-0.11-0.18
Stainless steel/ 304-316 Recommended cutting speed 85-120-155(m/min)	D13.0-D18.0	0.05-0.10-0.17	0.05-0.09-0.14	0.05-0.09-0.12	0.04-0.08-0.10
	D18.5-D29.0	0.05-0.10-0.17	0.05-0.09-0.14	0.05-0.09-0.12	0.04-0.08-0.10
	D29.5-D36.0	0.05-0.11-0.18	0.05-0.01-0.15	0.05-0.09-0.13	0.05-0.08-0.11
	D37.0-D55.0	0.06-0.12-0.20	0.06-0.11-0.17	0.06-0.10-0.14	0.05-0.09-0.13
	D36.0-D68.0	0.08-0.13-0.22	0.07-0.12-0.19	0.07-0.11-0.16
Note: For reference only(Lower limit value - recommended value - upper limit value)

Product Details of carbide drill bits

Large core diameterStable and earthquake resistant
Large cutting groove no chips
Accurate chamfering Easy to use

Comparison of cutting parameters between U-drill and ordinary drill bits

workpiece	U Drill			Ordinary drill			Improve efficiency 100%
	Feed rate f/ mm·r^-1	speed n/ r·min^-1	wire speed v/ m·min^-1	Feed rate f/ mm·r^-1	speed n/ r·min^-1	wire speed v/ m·min^-1
	Feed rate f/ mm·r^-1	speed n/ r·min^-1	wire speed v/ m·min^-1	Feed rate f/ mm·r^-1	speed n/ r·min^-1	wire speed v/ m·min^-1
45 steel	0.06~0.18	2000~3500	200~275	0.04~0.1	400~1000	10	600
Hardened steel	0.03~0.10	1500~2000	60~150	0.03~0.08	Unable to drill	5	1000
stainless steel	0.05~0.15	1500~3000	80~150	0.02~0.08	200~800	8	750
aluminium alloy	0.1~0.18	3000~4500	300~385	0.1~.015	1000~2000	20	300
titanium alloy	0.08~0.16	1000~2000	40~50	0.04~0.06	200~800	10	500

In the initial drilling, it is recommended to use the cutting value in the middle range, and then adjust the cutting parameters (according to the tool wear) to achieve the best cutting effect. The above cutting parameters are for 2D and 3D types, and for 4D types, the drilling parameters should be correspondingly reduced by 15%.
When the cooling method is only external cooling, the cutting speed should be reduced by 10%.
For the processing of austenitic stainless steel, internal cooling must be used.
When starting external drilling on the inclined plane, or when there are pre drilled and intersecting holes in the parts, or when drilling multi-layer plates, the feed rate needs to be reduced to about one-third of the recommended value.

Note

When using the lathe, it is easy to crush and burn the U-drill when using it with a deviation from the center
When using small-sized U-drills, high speed and high feed are required, because the lower the parameters, the greater the cutting resistance, and the situation of burning the tool is easy to occur

Advantage

Factory---We have our own factory with modern standard indexable blade production lines, CNC turning tool bar production lines, overall carbide end mill production lines, and PVD coating production lines; The product specifications and models are complete, and can be designed and produced according to customers' non-standard customization needs；
Sample---Support free samples, sample preparation for 3-5 days, mass production for 8-10 working days;
Logistics---Our shipping channels include sea, land, and air transportation；
After sales---We have a complete after-sales system, and cooperation is not the end, it is the beginning. If you have any after-sales problems, please feel free to contact us, and we will solve them for you as soon as possible.

FAQ

Q1: Vibration?

Solution:

1. Minimize overhang as much as possible

2. Check if the power tools and parts are securely clamped

3. Increase feed rate

4. For soft materials, cutting speed can be increased

5. For hard materials, the cutting speed should be reduced

Q2: Cutting blockage?

Solution:

1. Increase the feed rate to crush the cutting

2. Increase coolant pressure

Q3: Blade breakage?

Solution:

1. Reduce the feed rate at the drilling inlet

2. Choose a softer blade material

3. Reduce feed rate

4. Check for correct assembly

5. For hard materials, the cutting speed should be reduced

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