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.

 

1.Straight shank twist drills (Standard A)

2.Straight shank twist drills (Standard B)

 

3.Taper shank twist drills

        4.Twist drills set

 5.Double-ended drill

6.HSS Saw Drill Bit

 

  

7.Straight shank long twist drills直柄長鑽頭

 8.短刃全鎢鋼鑽頭

9.HSS Cobalt drills

 

10.1/2" Shank HSS Silver & Deming Drill Bit

 11.HSS Twist Drill Bits   -   1/4" Hex Shank

12.HSS Straight Shank Twist Drill Bit 

13.Carbide Tipped Twist Drill Bit

14.HSS Center Drill

15.HSS Countersink 

16.HSS Jobber Length Drill Bit, Left-hand Cut

標準直柄鑽頭長度公制 . 英吋 . 線規 . 字母規 - 建議價格表

1.質 HS-CO
2.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.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
 

    SHANGHAI LONGCHENG TOOLS Co.,Ltd.

ADD:ROOM1501,JIAHE INTERNATIONAL MANSION,No.1,LANE 66,HUAYUAN ROAD, HONGKOU DISTRICT, SHANGHAI,CHINA
TEL: 0086 021-60950280, 60950282        FAX: 0086 021-60950281       QQ:593684291      P.C.:200083
E-mail: longcheng@longchengtools.com    
MSN: nizhicheng@longchengtools.com   web site: http://www.longchengtools.com