Product Name | HSS 1/2 Inch Reduced Shank Twist Drill Bit For Metal Drilling |
Material | HSS (Cobalt HSS-E is Available) |
Process | Fully Ground (Rolled, Milled are Available) |
Standard | Reduced Shank (DIN338,Stub DIN1897, Long DIN340, Extra Long DIN1869are Available) Jobber Length ,Stub Screw Machine Length, Long Taper Length, Airctraft Extensoin, Extra Long , Silver & Deming 1/2" Reduced Shank are Available) |
Size | 0.3-30MM 1/16" - 31/64" , A - Z, 1# - 60# |
Point Type | 118 Degree Regular Point ,135 Degree Split Point, Pilot Point are Available |
Shank Type | Reduced Shank(Hex Shank, Tri-Flats Shank, Double R Hex Shank, Straight Shank are Available) |
Helix Angle | Regular Spiral Type N (Slow Spiral Type H, Fast Spiral Type Ware Available) |
Web & Flute Type | Regular Web & Flute (Thick Web with Parabolic Flute, Heavy Duty Web with Regular Flute are Available) |
Surface Finish | Bright ,Black Oxide, Amber Color, Titanium, Black & Gold, Titanium & Bright are Available |
Package | in PVC Pouch, Plastic Box, Individually in Skin Card, Double Blister, Clamshell, Metal Box |
Features | 1.High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. 2.Universal 118° point shape for drilling a wide selection of materials. 3.Precision ground point, flutes, body, clearance and drill diameter for the ultimate in accuracy and performance. 4.Ground flutes provide fast chip removal to maximize accuracy and efficiency along the full working surface of the bit. |
Comparison Table of Drilling Material RPM |
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Size |
Plastic/Wood |
Copper/Aluminum |
Cast Iron |
Iron |
Φ12-φ14 |
800-1000 |
1100-1600 |
650-1000 |
450-600 |
Φ14-φ18 |
600-800 |
850-1100 |
500-650 |
380-450 |
Φ18-φ22 |
500-600 |
750-850 |
400-500 |
260-380 |
Φ22-φ28 |
360-500 |
500-750 |
320-400 |
150-260 |
Φ28-φ35 |
260-360 |
360-500 |
240-320 |
100-150 |
Custom-tailor would be available against customers’ requirements
Shipping: Express delivery, air shipping, sea shipping are available for your request. Usual delivery time is 5-10days after receiving the advance payment; For the customized product, 15-30 days after receiving the advance payment.
Packing: We also supply single pvc bag,paper bag,colored plastic square box,transparent plastic box,skin card,sandwich and so on packages with size, logo,brand and other information.
Q: Is OEM available?
A: Yes, OEM and customization are available. Graved logo marker,Laser logo marker,, customized packing. Printed Inner box, Carton box.
Q: Are samples available?
A: Yes, you can ask some samples for testing after confirming our prices, but please pay the sample and freight fee, the sample fee will be returned to you after you making official order.
Q: What is your payment terms?
A: T/T,L/C,D/A,D/P,Paypal,Western Union,for different circumstances.
Q: What's your delivery way?
A: Express delivery, air shipping, sea shipping are available for your request.
Q: What's your delivery time?
A: Usual delivery time is 5-10days after receiving the advance payment; For the customized product, 15-30 days after receiving the advance payment.
+86 15252968666