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 Stock No. 522-6948
BrandRS PRO
$53.04
Each
units
12mm Jobber; Long HSS 400 mm
RS Stock No. 787-7377
BrandRS PRO
$3.08
1 Tube of 5
Tube(s)
1.25mm Jobber HSS 38 mm
RS Stock No. 217-384
BrandRS PRO
$37.79
1 Box of 10
Box(es)
6.5mm Jobber HSS 101 mm
RS Stock No. 216-684
BrandRS PRO
$56.16
1 Box of 5
Box(es)
11.5mm Jobber HSCo 142 mm
RS Stock No. 784-4857
BrandRS PRO
$20.83
Each
units
20mm Jobber HSS 156 mm
RS Stock No. 522-6752
BrandRS PRO
$17.62
Each
units
6mm Jobber; Long HSS 250 mm
RS Stock No. 213-742
BrandRS PRO
$12.92
1 Box of 10
Box(es)
3.4mm Jobber HSS 70 mm
RS Stock No. 522-6500
BrandRS PRO
$5.93
Each
units
1.5mm Jobber; Long HSS 160 mm
RS Stock No. 787-7292
BrandRS PRO
$17.92
1 Tube of 5
Tube(s)
7mm Short HSS 74 mm
RS Stock No. 522-6572
BrandRS PRO
$9.49
Each
units
3mm Jobber; Long HSS 200 mm
RS Stock No. 787-7254
BrandRS PRO
$6.93
1 Tube of 5
Tube(s)
2mm Short HSS 38 mm
RS Stock No. 214-751
BrandRS PRO
$7.50
1 Box of 10
Box(es)
1.5mm Short HSS 32 mm
RS Stock No. 787-7352
BrandRS PRO
$8.38
1 Tube of 5
Tube(s)
0.7mm Jobber HSS 28 mm
RS Stock No. 213-269
BrandRS PRO
$35.51
1 Box of 10
Box(es)
5.8mm Jobber HSS 93 mm
RS Stock No. 213-944
BrandRS PRO
$11.01
1 Box of 10
Box(es)
2.3mm Jobber HSS 53 mm
RS Stock No. 213-758
BrandRS PRO
$11.63
1 Box of 10
Box(es)
2.8mm Jobber HSS 61 mm
RS Stock No. 784-4790
BrandRS PRO
$29.22
Each
units
22mm Morse Taper HSS 248 mm
RS Stock No. 787-7295
BrandRS PRO
$14.29
1 Tube of 5
Tube(s)
6.5mm Short HSS 70 mm
RS Stock No. 214-975
BrandRS PRO
$13.40
1 Box of 10
Box(es)
5.5mm Short HSS 66 mm
RS Stock No. 784-4841
BrandRS PRO
$16.82
Each
units
18mm Jobber HSS 156 mm
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