60° Split Point DIN333 HSS Double Ended Self Centre Drill Bit Set For Hole Processing

60° Split Point DIN333 HSS Double Ended Self Centre Drill Bit Set For Hole Processing, Hss Centre Drill A B R Type High Speed Steel For Industrial, HSS Cobalt Center Drill Bit for Centre Drilling, Solid Carbide HSS Central Drill Bit, M2 HSS 60° Angle Center Drill Bits Kit Countersink Tools, Carbide Center Drills, High-Speed Steel Center Drills, Center Drill Countersink Set, Woodworking Metalworking & Multipurpose Drill Bits China Supplier Factory

60° Split Point DIN333 HSS Double Ended Self Centre Drill Bit Set For Hole Processing Specifications
Material HSS4241,4341,6542 (Co5%-M35,Carbide are Available)
Process Fully Ground
Flute Straight Flutes(2 Flute is Available)
Surface Tin-coated(Amber, Bright Finishing，AlTiN coated are Available)
Size 1.0MM-10MM
Standard DIN333A(DIN333B,DIN333R,Extra Long,GOST 14952-75 are Available)
Features
1.Center drill bits can be used to make conical holes for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking, as well as for producing center holds in components or work pieces with require machining between centers.
2.Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum, and so on.
3.Durable and Resistance: Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance.
4.center drills have flutes and cutting points on both ends. this allows the user with the ability to reverse the drill and utilize both ends.
5.Easy cutting with high speed and excellent offtake of chips.suitable for products with straight flute,oblique flute and spiral fiute,etc.
6.60 degree countersink angle fits all standard centers
7.High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

A double ended center drill has a shorter, thicker shaft and a narrower tapered or cone-shaped end than the drill’s shaft.The center drill works well for metals because, when placed against the metal, it does not quickly go off course. It is shorter and more durable than other bits that could flex or slide away from the drilling target under stress. A dull drill bit will not cut as well and may produce erroneous holes. When completing these activities, using the right drill bit is essential.

A center drill bit is a small drilling tool that is often used to make a center hole in metal. A center drill has a double-edged cutting edge, making it suitable for machining precision machine parts in metal. The shape of this cutting tool is tapered, which can accurately position the hole in the center of the metal part.

Centre drill bits are mainly used to make machine parts such as bearings, bolts, and pins. Centre drill bits have a strong positioning function, which can help workers accurately maintain their position when machining parts. Therefore, it is often seen in machine processing shops and manufacturing plants. Hss Combined Center Drills 60 Degree Countersinks Bit Set

In addition, centre drill bits can also be used to create an initial hole in the material being machined. Once the center drill cuts through the metal material, it provides a more accurate drilling position for other drills. This method can speed up the drilling process while reducing errors.

Centre drill bits are one of the smallest and most sensitive tools in the drilling tool. Sometimes, workers may need to straighten and widen the machined hole, which can be done with other large drills. That said, centre drill bits can be considered a prerequisite and necessity for improving production efficiency. High Speed Steel Combined Center Drills Set Machine Hand Tools

 

 

Type A HSS Center Drill
d	D	L	I
1.00	3.15	33.50	1.90
1.25	3.15	33.50	1.90
1.60	4.00	37.50	2.80
2.00	5.00	42.00	3.30
2.50	6.30	47.00	4.10
3.15	8.00	52.00	4.90
4.00	10.00	59.00	6.20
5.00	12.50	66.00	7.50
6.30	16.00	74.00	9.20
Type B HSS Center Drill
d	D	L	I
1.00	4.00	37.50	1.90
1.25	5.00	42.00	2.20
1.60	6.30	47.00	2.80
2.00	8.00	52.00	3.30
2.50	10.00	59.00	4.10
3.15	11.20	63.00	4.90
4.00	14.00	70.00	6.20
5.00	18.00	78.00	7.50
6.30	20.00	83.00	9.20
Type R HSS Center Drill
d	D	L	I
1.00	3.15	33.50	3.00
1.25	3.15	33.50	3.35
1.60	4.00	37.50	4.25
2.00	5.00	42.00	5.30
2.50	6.30	47.00	6.70
3.15	8.00	52.00	8.50
4.00	10.00	59.00	10.60
5.00	12.50	66.00	13.20
6.30	16.00	74.00	17.00

Other specification is also available according to your requirements. (OEM, ODM )
Pls. contact us freely for more information, I will reply you ASAP!