90 DEG. HSS-E M35 COBALT TiN Coated NC SPOTTING DRILL BIT, Cemented Hss Spot Drill Fixed Point Aluminum Solid Carbide Drill Bits, High Speed Steel 2 Flute Right Hand Cut Nc Spot Drill Bit 90° Point, HSS M42 Bit Spotting Drills with 90 Degree Angle, 120° HSS-COBALT SPOT DRILL SET 6, 8, 10, 12mm, Nc Spot Drill Hss Carbide Stub Center Bits 60 90 120 Degree, Carbide Spot Drill NC Spotting Drill Set, Woodworking Metalworking & Multipurpose Drill Bits China Supplier Factory
90 DEG. HSS-E M35 COBALT TiN Coated NC SPOTTING DRILL BIT Specifications
90° Spotting Drill
HSS-E (M35 Cobalt)
Processing Type Medium Cutting
Feature Ingenious craft
Stable performance
Wide range of applications
Light and fast cutting
Various specifications
Standard ISO
Quantity 1pcs/box
Surface Finish Black Oxide (Black White, Gray Bright)
Package Plastic Box
Customized Support OEM, ODM
The tungsten carbide drill bits is made of fine particle tungsten steel bar with high hardness, sharp edge and longer service life; Large core diameter design is adopted to give consideration to the strength and sharpness of the cutting edge, enhance the rigidity of the cutting tool, and achieve efficient cutting; The anti-seismic design of cutting edge improves the quality of machined surface; The spiral angle is designed to increase the capacity of the chip discharge groove, which ensures smooth chip discharge without chip accumulation, and effectively prevents the generation of chip buildup; The specifications and models are complete, and non-standard customization is supported.
Hss Twist 4341 Hss Tungsten Carbide Drill Bit Imperial Small Handle Fast Drilling Flute
Carbide Nc Spot Drill Bits HRC55 D1-D20 Spotting Solid Cemented Fixed Point Aluminum
Ingenious craft
Stable performance
Wide range of applications
Light and fast cutting
Various specifications
When using this tungsten carbide drill bits for the first time, try to cut at 90% of the cutting speed or 85% of the feed speed according to the above data, and then increase the cutting speed and feed rate one by one after the cutting condition is stable
This standard cutting condition is applicable to water-soluble cutting fluid
When installing the tool, please use a clean chuck with defects removed, and control the radial runout of the drill bit within 0.02mm
The cutting conditions in this table are applicable to situations with hole depth below 5D Cemented Hss Spot Drill Fixed Point Aluminum Solid Carbide Drill Bits
Notice:
When drilling steel parts, please ensure sufficient cooling capacity and use metal cutting fluid.
Good drill pipe rigidity and guide rail clearance can improve drilling accuracy and bit life.
Please ensure the flatness and cleanness between the magnetic base and the workpiece.
When drilling thin plates, reinforce the workpieces. When drilling large workpieces, ensure that the workpieces are stable.
At the beginning and end of drilling, the feed rate shall be reduced by 1/3. Bright Finish Carbide 2 Flute NC Spotting Drill Bit Straight Shank 142° Point
For materials with large amount of fine powder during drilling, such as cast iron, cast copper, etc., compressed air can be used instead of coolant to help remove chips.
Please remove the iron scraps wrapped on the drill body in time to ensure smooth chip removal.
Applications:
Our tungsten carbide drill bits could to be processed Alloy steel, Tool steel, carbon steel, stainless steel, Cast iron and Titanium alloy. Working material as following
HSS 2 Flute NC Spot Drill Bit Straight Shank 90° Point TiN Coated
|
SIZE
|
Diameter
|
Total Length
|
Flute Length
|
Cutting Angle
|
|
3.0
|
3
|
46
|
12
|
60° / 90° / 120°
|
|
4.0
|
4
|
55
|
14
|
60° / 90° / 120°
|
|
5.0
|
5
|
62
|
16
|
60° / 90° / 120°
|
|
6.0
|
6
|
66
|
18
|
60° / 90° / 120°
|
|
7.0
|
7
|
70
|
20
|
60° / 90° / 120°
|
|
8.0
|
8
|
79
|
22
|
60° / 90° / 120°
|
|
9.0
|
9
|
84
|
24
|
60° / 90° / 120°
|
|
10.0
|
10
|
89
|
26
|
60° / 90° / 120°
|
|
11.0
|
11
|
95
|
28
|
60° / 90° / 120°
|
|
12.0
|
12
|
102
|
30
|
60° / 90° / 120°
|
|
13.0
|
13
|
102
|
32
|
60° / 90° / 120°
|
