Twist Drill Bits

Twist drill bits are a hand tool accessories used for drilling material like masonry, wood and sheet metal to create holes. Twist Drill bits are used in conjunction with a power drill and are readily available in various shapes and sizes depending on the material being drilled.


Types of Twist Drill Bits


Jobber drill bit


Long drill bit


Short drill bit


Stub drill bit


Morse Taper drill bit


Self-centring drill bit


What material can they cut?


They can cut through many forms of material, it’s a question of having the correct drill bit, however typical materials include;


Wood


Plastics


Aluminium


Brass


Cast iron


Mild steel


How do they work?


Insert the drill bit into a corded or cordless power drill at the chuck, tighten until it’s held in place then select the required torque setting. Hold the power drill with both hands securely, apply some pressure then start drilling,


How do you know which type of Twist Drill Bits to use?


It is important to have the correct drill bit when cutting holes. When making a considered purchase there a few things you need to consider; the material being cut, the material & coating of the drill plus the geometry.


Drill point angle


There are 2 general types; 118 ° that drill mild steel aluminum and other soft metals or 135 ° that drills hard steel and tough materials.


What are their strengths?


HSS drill bits are basic, inexpensive and easy to re-sharpen


HSS drill bits with Cobalt are an improvement on HSS, offer greater resistance to heat and wear but is also easy to re-sharpen


Carbide drill bits are the most expensive, usually, give the best heat resistance and last the longest.


When should I sharpen my drill?


As a rule, if your holes are in tolerance and wear & chipping are below 0.5 mm it’s typically ok to keep using your drill, anything after that you need to consider replacing or sharpening.


Popular Coating


Bright finish


Black oxide


Titanium Nitride (TiN)


Titanium Carbon-Nitride (TiCN)


Titanium Aluminum Nitride (TiAIN)


Safety


Proper eye protection must be worn at all times


Only use drills bits made for power tools


Keep hands away from drills bits during application


Applications Information


Twist drill bits are used in Industrial construction, servicing & maintenance applications.


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Description Price Diameter Type Drilling Application Material Overall Length
RS庫存編號 794-7252
製造零件編號A0023.3
BrandDormer
HK$74.44
毎盒:5 個
Box(es)
3.3mm Jobber Multi-Material HSS-TiN 65 mm
RS庫存編號 728-7138
製造零件編號A1204.9
BrandDormer
HK$25.40
單位
4.9mm Short - HSS 62 mm
RS庫存編號 769-0316
製造零件編號2608585499
BrandBosch
HK$258.10
1 包 10 套
Pack(s)
6.6mm Jobber - HSS-G 101 mm
RS庫存編號 343-1384
製造零件編號R100 2.5MM
BrandDormer
HK$166.24
單位
2.5mm Jobber - Solid Carbide 57 mm
RS庫存編號 113-8628
製造零件編號DT50019-QZ
BrandDeWALT
HK$189.70
單位
13mm Impact - Titanium 101.5 mm
RS庫存編號 787-7311
BrandRS PRO
HK$253.49
毎管:5 個
Tube(s)
9.5mm Short - HSS 84 mm
RS庫存編號 695-0582
製造零件編號A9201/16
BrandDormer
HK$47.76
單位
1/16in Short - HSCo 41 mm
RS庫存編號 213-067
BrandRS PRO
HK$73.09
毎盒:10 個
Box(es)
4mm Jobber - HSS 75.5 mm
RS庫存編號 522-6639
BrandRS PRO
HK$54.77
單位
4mm Jobber; Long - HSS 160 mm
RS庫存編號 794-7274
製造零件編號A0023.9
BrandDormer
HK$76.82
毎盒:5 個
Box(es)
3.9mm Jobber Multi-Material HSS-TiN 75 mm
RS庫存編號 162-4130
製造零件編號3128820051693
BrandTivoly
HK$52.46
單位
7mm Jobber; Self Centring - HSS -
RS庫存編號 728-7147
製造零件編號A1205.0
BrandDormer
HK$24.38
單位
5mm Short - HSS 20 mm
RS庫存編號 794-7268
製造零件編號A0023.6
BrandDormer
HK$65.23
毎盒:5 個
Box(es)
3.6mm Jobber Multi-Material HSS-TiN 70 mm
RS庫存編號 784-4844
BrandRS PRO
HK$99.72
單位
18.5mm Jobber - HSS 156 mm
RS庫存編號 136-3906
製造零件編號A1475.5
BrandDormer
HK$61.268
/個 (每包:5個)
單位
5.5mm Jobber - HSS-E 93 mm
RS庫存編號 728-7257
製造零件編號A1255.0X160
BrandDormer
HK$139.27
單位
5mm Long - HSS 160 mm
RS庫存編號 707-2771
製造零件編號DT4900-QZ
BrandDeWALT
HK$35.85
單位
2mm - - HSCo 49 mm
RS庫存編號 794-7262
製造零件編號A0023.7
BrandDormer
HK$64.57
毎盒:5 個
Box(es)
3.7mm Jobber Multi-Material HSS-TiN 70 mm
RS庫存編號 813-0036
製造零件編號A002S6.8
BrandDormer
HK$44.08
單位
6.8mm Jobber - HSS-TiN 109 mm
RS庫存編號 794-7546
製造零件編號A1086.8
BrandDormer
HK$692.32
毎盒:10 個
Box(es)
6.8mm Jobber Multi-Material HSS 109 mm