Double Ended Drill Bits

Straight Shank Double Ended Metal Drill Bits

Double ended drill bits are usable at both ends
Made of HSS 4341, HSS 4341 is harder than 4241 and more durable
Quick and efficient to drill precision holes in the metal
Portable hand tools, easy to carry and use

Product Details
Factory
Material

Product Description
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Product Name	High Speed Steel Straight Shank Double Ended Twist Drill Bit
Material	HSS 4341 (Also have HSS 9341, HSS 6542 M2)
Process	Rolled & Polished (Also have Fully Ground, Rolled)
Standard	Double Ended
Size	3-6.5mm, 7/64″-1/4″
Point Type	118 Degree Split Point (Also have 135 Degree Regular Point)
Shank Type	Straight Shank
Helix Angle	Regular Spiral Type N
Web & Flute Type	Regular Web & Flute
Surface Finish	Black Oxide (Also have Bright, Black & Gold, Amber Color)
Package	10/5 pcs in PVC Pouch, Plastic Box, Plastic Tube
Features	1. 135 ° split point helps reduce bit walking 2. Made of HSS 4341 3. It is an optimal blend of strength, heat resistance, and wear resistance 4. For use in iron, aluminum, stainless steel, angle iron 5. Double end design allows for double the lifespan

Product Size
Double Ended (Metric Size)
Diameter (mm)	Flute Length (mm)	Overall Length (mm)	Diameter (mm)	Flute Length (mm)	Overall Length (mm)
3.0	10	46	5.2	16	62
3.1	10	46	5.5	19	66
3.2	10	49	6.0	19	66
3.3	10	49	6.5	21	70
3.5	13	52	7.0	23	74
4.0	13	55	7.5	23	74
4.1	13	55	8.0	25	79
4.2	13	55	8.5	25	79
4.5	16	58	9.0	25	84
4.8	16	58	9.5	25	84
5.0	16	62	10.0	25	89
5.1	16	62
Double Ended (Inch Size)
Diameter (mm)	Flute Length (mm)	Overall Length (mm)	Diameter (mm)	Flute Length (mm)	Overall Length (mm)
3/32″	9/16″	1-3/4″	7/32″	11/16″	2-3/8″
7/64″	5/8″	1-7/8″	1/4″	7/8″	2-1/2″
1/8″	5/8″	2″	10#	11/16″	2-1/4″
9/64″	5/8″	2″	11#	11/16″	2-1/4″
5/32″	5/8″	2-1/16″	20#	5/8″	2-1/8″
3/16″	5/8″	2-13/16″	30#	5/8″	2″
* Custom-tailor would be available against customers’ requirements

Factory

Double ended drill bits can be used to drill in metal, especially in thin metal sheets. 135 degree split point can prevent bit wandering, It is an optimal blend of strength, heat resistance and wear resistance. Double end can double drilling lifetime. It is practical and cheap!

Material: HSS 4341
Surface: Black Oxide
Use: Metal Drilling

Double ended drill bits can be used to drill on iron, stainless steel, aluminum.

HSS 4341 double ended drill bits are harder and durable than other drill bits.