Fully Ground HSS Double Ended Twist Drill Bits Set 3mm-5.2mm

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Fully Ground HSS Double Ended Twist Drill Bits Set 3mm-5.2mm Technical Specifications
Drive Size  5.2mm
Style Double Drill
• 135 degree split point
• Sturdy double end allows twice the usage
• Ideal for auto body work
• Made of HSS (High Speed Steel)
• Packaged in convenient see-through pouch of 12pc

1.High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
2.No center punch is needed-the aggressive 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not “walk” or “wander”.
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.
5.The double ended design doubles the life of the drill bit.

Standard Metric Double-Ended HSS-G Series Drill Bit ideal for use with wood, plastics & thin gauge ferrous metals. The Short length is ideal for operation in tight spaces & the Double-ended design enables easy & rapid bit changes.

Features & Benefits
Black oxide coating offers self-lubricating properties, maximum chip extraction, increased heat resistance & increased corrosion resistance
135° split point tip geometry prevents bit walking for fast & accurate material penetration HSS M2 135° Split Point Double-Sided Drill Bits
Double-ended design enables easy & rapid bit changes
Short length ideal for operation in tight spaces
Ground forged edge & flute construction for high quality performance & long life

Benefits of Double-Ended Drill Bits
Double-ended drill bits offer several benefits, one of which is convenience. They are fast and easy to use. You don’t have to worry about accidentally installing them backward. With your drill’s chuck open — the chuck is the clamping device that holds the drill bit — you can place the double-ended drill bit in your drill. Closing the chuck will then secure the double-ended drill bit in place.

Not only are they fast and easy to use, but double-ended drill bits last a long time as well. They essentially last twice as long as their single-ended counterparts. After the cutting edges on one end have become too dull, you can flip it to use the other end.

It’s also worth mentioning that double-ended drill bits are cost effective. Since you’ll get twice as much use out of them, you won’t have to replace them as frequently as ordinary single-ended drill bits. This results in cost-savings benefits.

All drill bits have cutting edges. While single-ended drill bits only have cutting edges formed on one end, double-ended drill bits have cutting edges on both ends. This unique design makes them fast and easy to use, long-lasting and cost effective.

Drill bit types explained

Drill bits can also be categorised by the type of hole they cut or their usage. Each one is usually suitable for drilling into specific types of materials too. Here are the most common types:

Auger drill bits explained
Auger drill bits are designed for deep, clean drilling into thick, dry wood. They have a more pronounced central point or spur than standard wood drill bits, making it easy to locate the point that’s being drilled and keep the hole on course. This type of wood drill bit is ideal for precision drilling and creating neat holes. So, this is the best wood drill bit to use if appearance is important.

Brad point drill bits explained
Brad point drill bits are another type of wood drill bit that offers precision drilling. They have a pronounced point at the end to ensure the bit stays in the right place and extra-wide flutes that help remove the waste material quickly. They also come with rubber stoppers which allow you to set how deep you want to drill into the wood. Titanium-coated 1/8″ Double-Ended Drill Bits Set 12pack

Combination drill bits explained
Combination drill bits is the term used for drill bit sets containing multiple drill bit types suitable for various materials and uses. These sets are ideal for tradespeople or DIYers who need drill bits for a range of jobs rather than someone specialising in working with specific material types.

Cone drill bits explained
Cone drill bits are specialist drill bits used for drilling holes in plastic pipes and sheet metal up to 2mm thick. They are made from high-speed steel (HSS) and have a TiN coating to reduce friction. They have a cone-shaped point, making it easy to drill holes of different diameters without changing the drill bit size.  10 Pack Double Ended Drills 9/64″ x 2″ HSS

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