Straight Shank HSS Twist DIN1897 Short Drill Bits
Material HSSM42, HSSM35, HSSM2(6542), HSS4341, HSS4241
Process fully ground, edge ground/half ground, roll forged, milled
Standard DIN338, DIN340, DIN1897, DIN1869
Split Point 118°and 135° tip both available
Stamping laser marking and (letter) stamping.
Shank Straight shank(Tri-Flats shank,Hex shank,Round shank,Morse taper shank)
Available Packing single sleeve packing, sandwich packing, blister packing, square plastic box packing( with hanger or without hanger), Bosch plastic box packing, flat plastic box packing, 5/10 PVC bag packing, paper bag,
Surface Color black flute & golden shank, black flute & white shank, bright finished, black oxide,Tin-coated, amber(coffee) finished.
Diameter Size 0.5-20mm. 1/16″-1″, A-Z, 1# – 90#
Total Length 2.5-140mm
OEM ODM
Fast Delivery
100% Guranteed
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Straight Shank HSS Twist DIN1897 Short Drill Bits, HSS-R 4341 Twist Taper Length Drill Bit Black Rolled Polished, HSS Left Hand Twist M35 Cobalt Drill Bit For Removing Damaged Bolts And Screws, Stainless Steel and Harded Steel Din 338 HSS Twist Drill Bits, Rolled & Polished, Roll Forged, Fully Ground, Reduced Shank, Milled Types DIN338 HSS Straight Shank Twist Drill Bits China Supplier Factory
Straight Shank HSS Twist DIN1897 Short Drill Bits Technical Specifications
These DIN340 twist drill bits are used when a longer overall and flute length are needed and come in a variety of different styles such as High Helix, Dyna-Flute, and Tanged. The Din340 twist drill bits can also have surface treatment, polished or black oxide and with both 118° And 135° Drill points.
|
HSS Twist Drill Bits |
||||||||
| Manufacturing |
Surface Finish |
Sharpening |
||||||
|
White |
Black |
Black&White |
TIN Coated |
Amber |
Black&Gold |
118° |
135° |
|
| Roll Forged |
|
√ |
√ |
|
|
|
√ |
√ |
| Rolled Polished |
√ |
√ |
√ |
√ |
√ |
|
√ |
√ |
| Fully Ground |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
| Milled |
√ |
√ |
√ |
√ |
|
√ |
√ |
|
| Standards | DIN338, DIN340, DIN1897, DIN1869, DIN345, DIN341 | |||||||
| Jobber Length, Taper Length, Screw Machine Length, Aircraft Extension, Taper Shank(ANSI) | ||||||||
| Material | HSS4241, HSS4341, HSS9341, HSS6542(M2), HSS CO5%(M35), HSS CO8%(M42) | |||||||
| Shank | Straight Shank, Taper Shank, Three Flats Shank, Hexagonal Shank, 1/2″ 3/8″ Reduced Shank | |||||||
| Helix Angle | Type N, Type W, Type H | |||||||
| Rotating | Right Hand, Left Hand | |||||||
| Flute | Normal Parabolic | |||||||
1.Long twist drill bits
Long twist drill bits are designed for drilling holes which run deeper than a standard-length drill bit. A typical example might include installing security latches on a door, which would require drilling down through the ends of the workpiece to a depth of up to one foot.
An especially long twist drill bit will be required to complete everyday tasks such as these, but the main potential disadvantage of an extra-long drill bit is that it can tend to wander more as it goes. Longer twist bits are also more prone to breaking at lower gauges than short bits, particularly when more force is applied to get through greater depths of material. Twist drill bits are also available in a short form.
2.Reverse twist drill bits
Reverse twist drill bits are designed to work with your drill set to the reverse rotation direction (counter-clockwise). However, unlike a standard drill bit which would simply drag its cutting edge backwards around the interior of the hole with the drill running backwards, reverse twist drill bits are machined with their fluted cutting surfaces facing in the opposite direction.
When a reverse bit is inserted into a chuck and the drill is run counter-clockwise, this means that the bit performs the same sort of cutting action that a standard drill bit does when moving clockwise. This can be extremely useful as a method of screw extraction when the slots on a screw head have been worn away. DIN340 High Speed Steel HSS 4341 Long Type Drill Bits Set
|
Diameter |
Overall length |
Flute length |
Diameter |
Overall length |
Flute length |
|
mm |
mm |
mm |
inch |
inch |
inch |
|
0.5 |
22 |
6 |
3/64″ |
1-3/4″ |
3/4″ |
|
1.0 |
34 |
12.0 |
1/16″ |
1-7/8″ |
7/8″ |
|
1.5 |
43 |
20.0 |
5/64″ |
2″ |
1″ |
|
2 |
49 |
24.0 |
3/32″ |
2-1/4″ |
1-1/8″ |
|
2.5 |
57 |
30.0 |
7/64″ |
2-5/8″ |
1-1/2″ |
|
3.0 |
61 |
33.0 |
1/8″ |
2-3/4″ |
1-5/8″ |
|
3.2 |
65 |
36.0 |
9/64″ |
2-7/8″ |
1-3/4″ |
|
3.5 |
70 |
39.0 |
5/32″ |
3-1/8″ |
2″ |
|
4.0 |
75 |
46.0 |
11/64″ |
3-1/4″ |
2-1/8″ |
|
4.2 |
75 |
46.0 |
3/16″ |
3-1/2″ |
2-5/16″ |
|
4.5 |
80 |
47.0 |
13/64″ |
3-5/8″ |
2-7/76″ |
|
4.8 |
86 |
52.0 |
7/32″ |
3-3/4″ |
2-1/2″ |
|
5.0 |
86 |
52.0 |
15/64″ |
3-7/8″ |
2-5/8″ |
|
5.2 |
86 |
52.0 |
1/4″ |
4″ |
2-3/4″ |
|
5.5 |
93 |
57.0 |
17/67″ |
4-1/8″ |
2-7/8″ |
|
6.0 |
93 |
57.0 |
9/32″ |
4-1/4″ |
2-15/16″ |
|
6.5 |
101 |
63.0 |
19/64″ |
4-3/8″ |
3-1/16″ |
|
7.0 |
109 |
69.0 |
5/16″ |
4-1/2″ |
3-3/16″ |
|
7.5 |
109 |
69.0 |
21/64″ |
4-5/8″ |
3-5/16″ |
|
8.0 |
117 |
75.0 |
11/31″ |
4-3/4″ |
3-7/16″ |
|
8.5 |
117 |
75.0 |
23/64″ |
4-7/8″ |
3-1/2″ |
|
9.0 |
125 |
81.0 |
3/8″ |
5″ |
3-5/8″ |
|
9.5 |
125 |
81.0 |
25/64″ |
5-1/8″ |
3-3/4″ |
|
10.0 |
133 |
87.0 |
13/32″ |
5-1/4″ |
3-7/8″ |
|
10.5 |
133 |
87.0 |
27/64″ |
5-3/8″ |
3-15/16″ |
|
11.0 |
142 |
94.0 |
7/16″ |
5-1/2″ |
4-1/16″ |
|
11.5 |
142 |
94.0 |
29/64″ |
5-5/8″ |
4-3/16″ |
|
12.0 |
151 |
101 |
15/32″ |
5-3/4″ |
4-5/16″ |
|
12.5 |
151 |
101 |
31/64″ |
5-7/8″ |
4-3/8″ |
|
13.0 |
151 |
101 |
17/32″ |
6-5/8″ |
4-13/16″ |
|
13.5 |
160 |
108 |
35/64″ |
6-5/8″ |
4-13/16″ |
|
14.0 |
160 |
108 |
9/64″ |
6-5/8″ |
4-13/16″ |
|
14.5 |
169 |
114 |
37/64″ |
6-5/8″ |
4-13/16″ |
|
15.0 |
169 |
114 |
19/32″ |
7-1/8″ |
5-13/16″ |
|
15.5 |
178 |
120 |
39/64″ |
7-1/8″ |
5-13/16″ |
|
16.0 |
178 |
120 |
5/8″ |
7-1/8″ |
5-13/16″ |
|
16.5 |
184 |
125 |
41/64″ |
7-1/8″ |
5-13/16″ |
|
17.0 |
184 |
125 |
21/32″ |
7-1/8″ |
5-13/16″ |
|
17.5 |
191 |
130 |
43/64″ |
7-5/8″ |
5-5/8″ |
|
18.0 |
191 |
130 |
11/16″ |
7-5/8″ |
5-5/8″ |
|
18.5 |
198 |
135 |
|||
|
19.0 |
198 |
135 |
|||
|
19.5 |
205 |
140 |
|||
|
20.0 |
205 |
140 |
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