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Gelötete Kanonenbohrer
Gun drill is a specialized cutting tool used in gun drilling machine. Drillstar ’s brazed single flute gun drills have following properties:
Diameter range: 3 – 40mm
Overall length: 5000mm (maximum)
Single fluted type is the most common type for Brazed Gun Drills. And the most widely used.
Contains one-piece carbide drill bit and steel drill bit with carbide inserts.
The tube and shank are made of steel material. And through heat treatment.
The three parts are brazed to be a complete tool.
Drillstar sells gun drills in diameter ranges from 1.40 mm to 50.80 mm (0.055″ to 2.0″). Also, we offer a wide variety of gundrill types such as:
- Solid carbide tip & shank, single kidney oil hole, single flute
- Single round oil hole, single flute
- Two round oil holes, single flute
- Kidney shaped oil hole, single flute
- Two oil holes, two flute
- Single oil hole, single flute, chips ahead reamer
- Two oil holes, two flute, chips ahead reamer
The rated grinding angle fits for drilling of the most of material. After using, through re-grinding can prolong the service life.
Advantage:
1 All carbide tips are from European carbide manufacturers ESTECH and Ceratizit, with which guarantees the quality of the tools. The suppliers also provide the materials to Boteck and TBT.
2. Stable quality which are testimofied by clients around the clients.
3. Fast delivery: We can delivery with 7 days for general quantity while EU and USA factory usually spend 1 month.
Drillstar Single Flute gun drill grinding angles
PS: We can adjust the angles according to the material being drilled and accuracy requirements.
Clamping sleeves
In addition to manufacturing below standard clamping sleeves, Drillstar also customizes clamping to your special requirements (from a diagram or sample)
Working Parameters:
|
ISO |
材料 Material |
切削力 |
布氏硬度 Härte |
切削速度cutting speed |
钻头直径，gun drill diameter(mm) |
||||
|
N/mm3 |
HB |
V.m/min |
0.98-3.00 |
3.00-6.30 |
6.00-12.50 |
12.50-40.50 |
|||
|
Feeding rate，fm mm/r |
|||||||||
|
P steel |
非合金Non alloy |
非淬硬 non hardened 0.1-0.25% |
2000 |
90-200 |
60-120 |
0.003-0.010 |
0.005-0.003 |
0.015-0.055 |
0.020-0.110 |
|
非淬硬 non hardened 0.25-0.55% |
2100 |
|
50-120 |
0.003-0.010 |
0.005-0.003 |
0.015-0.055 |
0.020-0.110 |
||
|
非淬硬 non hardened 0.55-0.8% |
2180 |
150-250 |
40-100 |
0.003-0.010 |
0.004-0.025 |
0.010-0.060 |
0.020-0.100 |
||
|
低合金Low alloy |
非淬硬 non hardened |
2100 |
150-260 |
40-120 |
0.003-0.010 |
0.004-0.030 |
0.010-0.055 |
0.020-0.110 |
|
|
淬硬与固火hardened and fixed |
2775 |
220-450 |
40-120 |
0.003-0.010 |
0.004-0.025 |
0.010-0.060 |
0.020-0.100 |
||
|
高合金high alloy |
退火annealing |
2500 |
150-250 |
40-100 |
0.003-0.010 |
0.004-0.025 |
0.010-0.060 |
0.020-0.100 |
|
|
淬硬工具钢 hardened tool steel |
3750 |
250-350 |
50-100 |
0.003-0.010 |
0.006-0.025 |
0.015-0.060 |
0.030-0.100 |
||
|
高铸钢High cast steel |
非合金 non alloy |
1800 |
90-225 |
50-120 |
0.003-0.010 |
0.006-0.030 |
0.015-0.055 |
0.020-0.110 |
|
|
低合金（合金元素<5%）low alloy(alloy <5%) |
2100 |
150-250 |
40-100 |
0.003-0.010 |
0.004-0.025 |
0.010-0.050 |
0.020-0.100 |
||
|
M stainless steel |
轧制/锻造rolled/forged |
铁素体ferrite、马氏体martensite、非淬硬non hardened |
2300 |
150-270 |
40-90 |
0.003-0.008 |
0.004-0.025 |
0.010-0.040 |
0.020-0.100 |
|
轧制/锻造rolled/forged |
奥氏体aussenite |
2600 |
150-275 |
40-90 |
0.003-0.008 |
0.004-0.025 |
0.010-0.040 |
0.020-0.100 |
|
|
K cast iron |
可锻铸铁 malleable cast-iron |
铁素体ferrite |
960 |
110-145 |
70-90 |
0.005-0.010 |
0.008-0.030 |
0.020-0.070 |
0.050-0.190 |
|
珠光体pearlite |
1100 |
150-270 |
60-90 |
0.005-0.010 |
0.006-0.030 |
0.010-0.070 |
0.030-0.190 |
||
|
灰口铸铁grey cast iron |
低拉伸强度low tensile strength |
1100 |
150-220 |
60-90 |
0.004-0.010 |
0.006-0.030 |
0.010-0.070 |
0.030-0.190 |
|
|
高拉伸强度high tensile strenght |
1290 |
200-330 |
15-90 |
0.003-0.010 |
0.003-0.030 |
0.005-0.070 |
0.010-0.190 |
||
|
球墨铸铁 nodular cast iron |
铁素体ferrite |
1050 |
125-230 |
70-90 |
0.005-0.010 |
0.008-0.030 |
0.020-0.070 |
0.050-0.190 |
|
|
珠光体pearlite |
1760 |
200-300 |
60-90 |
0.004-0.010 |
0.006-0.030 |
0.010-0.070 |
0.030-0.190 |
||
|
N non ferrous metal |
铝合金 AL alloy |
铸造、非时效 cast.non aging |
750 |
40-100 |
65-300 |
0.005-0.015 |
0.006-0.040 |
0.020-0.070 |
0.030-0.150 |
|
铜和铜合金 Copper and copper alloy |
易切合金pb>1% free cutting alloy pb>1% |
700 |
70-160 |
65-300 |
0.005-0.015 |
0.006-0.040 |
0.020-0.070 |
0.030-0.150 |
|
|
黄铜，加铅青铜pb<1% copper and copper with lead pb<1% |
700 |
50-200 |
65-300 |
0.005-0.015 |
0.006-0.040 |
0.020-0.070 |
0.030-0.150 |
||
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