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 213-067
BrandRS PRO
HK$73.09
毎盒:10 個
Box(es)
4mm Jobber - HSS 75.5 mm
RS庫存編號 299-7782
製造零件編號A170-13,50
BrandDormer
HK$561.19
單位
13.5mm - - HSS 156 mm
RS庫存編號 787-7355
BrandRS PRO
HK$42.37
毎管:5 個
Tube(s)
0.85mm Jobber - HSS 30 mm
RS庫存編號 784-4813
BrandRS PRO
HK$729.50
單位
31mm Morse Taper - HSS 301 mm
RS庫存編號 794-7596
製造零件編號A7772.5
BrandDormer
HK$311.11
毎盒:10 個
Box(es)
2.5mm Jobber - HSS-E 57 mm
RS庫存編號 794-7290
製造零件編號A0024.7
BrandDormer
HK$85.62
毎盒:5 個
Box(es)
4.7mm Jobber Multi-Material HSS-TiN 80 mm
RS庫存編號 213-124
BrandRS PRO
HK$232.18
毎盒:10 個
Box(es)
8mm Jobber - HSS 117 mm
RS庫存編號 299-7912
製造零件編號A170-19,50
BrandDormer
HK$582.46
單位
19.5mm - - HSS 158 mm
RS庫存編號 213-607
BrandRS PRO
HK$221.13
毎盒:10 個
Box(es)
6.8mm Jobber - HSS 109 mm
RS庫存編號 794-7616
製造零件編號A7775.5
BrandDormer
HK$622.83
毎盒:10 個
Box(es)
5.5mm Jobber - HSS-E 93 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
RS庫存編號 792-046
製造零件編號A110-1MM
BrandDormer
HK$35.86
單位
1mm Long - HSS 56 mm
RS庫存編號 728-7425
製造零件編號R4544.0
BrandDormer
HK$458.94
單位
4mm Long - Solid Carbide 74 mm
RS庫存編號 343-1356
製造零件編號204F 1.0
BrandDormer
HK$121.19
單位
1mm Jobber - Solid Carbide 34 mm
RS庫存編號 728-7217
製造零件編號A1251/8X160
BrandDormer
HK$151.84
單位
1/8in Long - HSS 160 mm
RS庫存編號 217-227
BrandRS PRO
HK$330.35
毎盒:10 個
Box(es)
6.8mm Jobber - HSS 109 mm
RS庫存編號 828-0276
製造零件編號A002S4.0
BrandDormer
HK$19.675
/個 (每包:2個)
單位
4mm Jobber - HSS-TiN 75 mm
RS庫存編號 792-103
製造零件編號A110-4MM
BrandDormer
HK$41.16
單位
4mm Long - HSS 119 mm
RS庫存編號 742-4074
製造零件編號R4546.9
BrandDormer
HK$593.77
單位
6.9mm Long - Solid Carbide 91 mm
RS庫存編號 522-6695
BrandRS PRO
HK$70.18
單位
5mm Jobber; Long - HSS 200 mm