#13 DIN333b HSS Center Drill Bit Type B Bell Type-60° Combined Drill & Countersink

Product Description

     

Combined Drills & Countersinks - Bell Type

 

Combined drills and countersinks are used when locating an accurate center hole is required to assure the precision and quality of subsequent machining operations. Additional 120° included chamfer in Bell Type countersinks eliminates the risk of deforming the countersink seat. 118° Point. Note: Drill Diameter equals Drill Length

Bell Type center drills with protective chamfer guarantee the center obtained from any risk of blows and deformation. The splay resulting from the protective chamfer makes it easier to load parts on machines with automatic feed.
 

• Bell type combined drill & countersinks are used to prevent marring of the center hole when a workpiece will be used in multiple machining processes

 

• HSS material provides good wear resistance in mild steels and non-ferrous materials such as plastics, aluminum, copper, brass, bronze, rubber and wood

 

Procuct Name	DIN333 Type A/B HSS Center Drill Bit for Lathe Centre Drilling
Material	HSS ( Carbide are Available)
Process	Fully Ground
Flute	Straight Flutes
Surface	Bright Finishing  ( Tin-coated,AlTiN coated  are Available)
Size	1.6MM-12.5 MM    #0-#20
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.Manufactured from M35 cobalt steel,for much faster cutting and extra longer life span when compared with an average HSS drill bit. 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

Size:
 

	Working
Dia	Length
1.6	4.0mm
2.0	5.0mm
2.5	6.3mm
3.15	8.0mm
4.0	10.0mm
5.0	12.5mm
6.3	16.0mm

 

				Overall
Size	Body Dia.	Drill Dia.	Bell Dia.	Length
#11	1/8"	3/64"	0.1	1-1/4
#12	3/16	1/16	0.15	1-7/8
#13	1/4	3/32	0.2	2"
#14	5/16	7/64	0.25	2-1/8
#15	7/16	5/32	0.35	2-3/4
#16	1/2	3/16	0.4	3"
$17	5/8	7/32	0.5	3-1/4
#18	3/4	1/4	0.6	3-1/2

* Other Sizes are available,Concact Us to Learn More.