12. Twist drills
麻花钻头
DESCRIPTION
Twist drill manufactured
from High Speed Steel to DIN 338. using roll forging process. Cylindrical ground
with right hand cutting, point angle ground at 1180, diameter
tolerance to h8.
Finish: black by
steamtempering.
USE
Powerful,
solid standard drill. For drilling steel and cast steel (alloyed and non alloyed
material and all general metal drilling applications) up to approx 900N/mm2.
Suitable for electric portable or stationary lubricating/cutting oil be used
when possible.
標準直柄鑽頭長度公制
. 英吋 . 線規 . 字母規 - 建議價格表
| 1.材質
HS-CO |
| 2.先進之短刃,高導角,特殊刀口設計,免用中心鑽頭,加工精度高 |
| 3.斷屑排屑,加工穩定性高 |
| 4.HS-CO
母材,再加上短刃高導角刃形,比一般鑽頭效率提高50~200%,特別適用自動車床,CNC
及 MC高速量產加工 |
| 切削速度表
(切削深度直徑3倍以內) |
| 材質 |
切削速度 |
鉆頭直徑 |
| (m/mm) |
2-3.5 |
3.5-5 |
5-8 |
8-11 |
11-13 |
13-16 |
16-20 |
|
低中碳鋼
|
|
up tp 700N mm e.g
|
| St 37 |
1.0120
|
| C15 |
1.0401
|
| C22 |
1.0402 |
| C35 |
1.0501 |
| 9 S Mn Pb 28 1.0728 |
|
40-45 |
0.08-0.12 |
0.12-0.20 |
0.20-0.25 |
0.25-0.30 |
0.30-0.35 |
0.35-0.40 |
0.40-0.45 |
|
調質鋼
|
| C45 |
1.0503 |
| 34 Cr4 |
1.7033 |
| 34 CrMo4 |
1.7220 |
| 20 MnCr5 |
1.7147 |
| 16 MnCr5 |
1.7131 |
|
35-40 |
0.07-0.10 |
0.10-0.15 |
0.15-0.20 |
0.20-0.25 |
0.25-0.30 |
0.30-0.40 |
0.40-0.45 |
|
合金鋼
|
| above 900 N mm e.g |
| 42 CrMo4 |
1.7225
|
| 36 CrNIMOD |
1.6511 |
| 100CrMo6 |
1.3536 |
|
30-35 |
0.06-0.10 |
0.10-0.12 |
0.12-0.15 |
0.15-0.25 |
0.25-0.30 |
0.30-0.40 |
0.40-0.45 |
灰鑄鋼
up to GG40 |
40-50 |
0.08-0.15 |
0.15-0.20 |
0.20-0.30 |
0.30-0.35 |
0.35-0.40 |
0.40-0.50 |
0.50-0.60 |
球墨鑄鐵
up to GG60 |
30-40 |
0.06-0.10 |
0.10-0.15 |
0.15-0.20 |
0.20-0.25 |
0.25-0.30 |
0.30-0.40 |
0.40-0.50 |
| 鋁合金 |
50-80 |
0.10-0.15 |
0.15-0.20 |
0.20-0.30 |
0.30-0.40 |
0.40-0.50 |
0.50 |
0.50 |
|
4.
16.HSS Jobber Length Drill
Bit, Left-hand Cut