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 Material Overall Length
RS庫存編號 768-3157
製造零件編號2608585878
BrandBosch
HK$24.212
/個 (每包:10個)
單位
3.3mm Twist Drill HSS 65 mm
RS庫存編號 216-533
BrandRS PRO
HK$570.85
毎盒:10 個
Box(es)
10mm Jobber HSCo 133 mm
RS庫存編號 178-125
製造零件編號A100 1-70
BrandDormer
HK$14.498
/個 (每包:5個)
單位
1.7mm Jobber HSS 43 mm
RS庫存編號 794-7631
製造零件編號A7777.0
BrandDormer
HK$933.35
毎盒:10 個
Box(es)
7mm Jobber HSS-E 109 mm
RS庫存編號 794-7669
製造零件編號A77713.0
BrandDormer
HK$1,187.84
毎盒:5 個
Box(es)
13mm Jobber HSS-E 151 mm
RS庫存編號 768-3166
製造零件編號2608585883
BrandBosch
HK$30.886
/個 (每包:10個)
單位
4.5mm Twist Drill HSS 80 mm
RS庫存編號 695-0469
製造零件編號A9001/8
BrandDormer
HK$46.00
單位
1/8in Jobber HSCo 70 mm
RS庫存編號 768-3217
製造零件編號2608595049
BrandBosch
HK$8.659
/個 (每包:10個)
單位
1mm Twist Drill HSS-G 34 mm
RS庫存編號 768-3163
製造零件編號2608585882
BrandBosch
HK$35.727
/個 (每包:10個)
單位
4.2mm Twist Drill HSS 75 mm
RS庫存編號 768-3258
製造零件編號2608595062
BrandBosch
HK$21.554
/個 (每包:10個)
單位
5mm Twist Drill HSS-G 86 mm
RS庫存編號 787-7359
BrandRS PRO
HK$41.98
毎管:5 個
Tube(s)
0.8mm Jobber HSS 30 mm
RS庫存編號 213-304
BrandRS PRO
HK$72.83
毎盒:10 個
Box(es)
3.5mm Jobber HSS 70 mm
RS庫存編號 794-7587
製造零件編號A7772.0
BrandDormer
HK$303.32
毎盒:10 個
Box(es)
2mm Jobber HSS-E 49 mm
RS庫存編號 768-3270
製造零件編號2608595068
BrandBosch
HK$27.728
/個 (每包:10個)
單位
6.5mm Twist Drill HSS-G 101 mm
RS庫存編號 213-168
BrandRS PRO
HK$141.76
毎盒:10 個
Box(es)
6.5mm Jobber HSS 101 mm
RS庫存編號 216-707
BrandRS PRO
HK$271.74
毎盒:10 個
Box(es)
6mm Jobber HSCo 93 mm
RS庫存編號 794-7634
製造零件編號A7777.5
BrandDormer
HK$995.57
毎盒:10 個
Box(es)
7.5mm Jobber HSS-E 109 mm
RS庫存編號 216-583
BrandRS PRO
HK$411.66
毎盒:10 個
Box(es)
5mm Jobber HSCo 86 mm
RS庫存編號 695-0481
製造零件編號A9004.2
BrandDormer
HK$72.18
單位
4.2mm Jobber HSCo 75 mm
RS庫存編號 794-7612
製造零件編號A7775.0
BrandDormer
HK$537.82
毎盒:10 個
Box(es)
5mm Jobber HSS-E 86 mm