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 Stock No. 694-447
BrandRS PRO
$33.34
Each
units
17mm Blacksmiths - HSS 184 mm
RS Stock No. 784-4816
BrandRS PRO
$15.40
Each
units
14mm Jobber - HSS 156 mm
RS Stock No. 408-7988
BrandRS PRO
$35.61
Each
units
16mm Blacksmiths - HSS 150 mm
RS Stock No. 408-7972
BrandRS PRO
$32.97
Each
units
14mm Blacksmiths - HSS 150 mm
RS Stock No. 787-7359
BrandRS PRO
$7.98
1 Tube of 5
Tube(s)
0.8mm Jobber - HSS 30 mm
RS Stock No. 784-4841
BrandRS PRO
$15.29
Each
units
18mm Jobber - HSS 156 mm
RS Stock No. 668-0955
BrandRS PRO
$19.29
1 Box of 10
Box(es)
1/8in Jobber - HSS 65 mm
RS Stock No. 522-6932
BrandRS PRO
$44.54
Each
units
12mm Jobber; Long - HSS 315 mm
RS Stock No. 784-4778
BrandRS PRO
$17.14
Each
units
16mm Morse Taper - HSS 218 mm
RS Stock No. 787-7337
BrandRS PRO
$8.13
1 Tube of 5
Tube(s)
0.5mm Jobber - HSS 22 mm
RS Stock No. 784-4797
BrandRS PRO
$36.10
Each
units
25mm Morse Taper - HSS 281 mm
RS Stock No. 213-792
BrandRS PRO
$11.18
1 Box of 10
Box(es)
4.4mm Jobber - HSS 80 mm
RS Stock No. 787-7343
BrandRS PRO
$4.66
1 Tube of 5
Tube(s)
0.75mm Jobber - HSS 28 mm
RS Stock No. 787-7270
BrandRS PRO
$8.60
1 Tube of 5
Tube(s)
4.5mm Short - HSS 58 mm
RS Stock No. 784-4804
BrandRS PRO
$66.41
Each
units
30mm Morse Taper - HSS 296 mm
RS Stock No. 784-4790
BrandRS PRO
$26.56
Each
units
22mm Morse Taper - HSS 248 mm
RS Stock No. 212-985
BrandRS PRO
$10.05
1 Box of 10
Box(es)
1.5mm Jobber - HSS 40.5 mm
RS Stock No. 213-118
BrandRS PRO
$48.88
1 Box of 10
Box(es)
8.5mm Jobber - HSS 118 mm
RS Stock No. 213-089
BrandRS PRO
$9.97
1 Box of 10
Box(es)
2.5mm Jobber - HSS 56 mm
RS Stock No. 213-095
BrandRS PRO
$22.37
1 Box of 10
Box(es)
6mm Jobber - HSS 93.5 mm
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