Double Ended Bit

Twist Double Sided Drill Bit for Metal Drilling

Double sided drill bit have high precise drilling
135 Degree Split Point can self-centring without center punch tool
Double sided drill bit ensures safety and reduces the drilling time
For use in steel, aluminum, copper and sheet metal

Product Details
Factory
Material

Product Description
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Product Name	HSS Twist Double Ended Drills Fully Ground for Metal Drill
Material	HSS 4341 (Also have HSS 9341, HSS 6542 M2)
Process	Fully Ground (Also have Rolled & Polished, Rolled)
Standard	Double Ended
Size	3-6.5mm, 7/64″-1/4″
Point Type	135 Degree Split Point (Also have 118 Degree Regular Point)
Shank Type	Straight Shank
Helix Angle	Regular Spiral Type N
Web & Flute Type	Regular Web & Flute
Surface Finish	Bright (Also have Black & Gold, Black Oxide, 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

The design of double sided drill bit not to slip easily making it easier and 135 degree split point do not need center punch tool. Double end design allows for double the lifespan. The short chip flutes provide a gentle, low-vibration working can prevent the drill bit break.

Material: HSS 4341
Surface: Bright
Use: Metal Drilling

Double sided drill bit can drill on metal, stainless steel, aluminum, angle iron and so on.

The stability and break resistance of double sided drill bit is good.