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, its 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 its 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 its 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. 214-925
BrandRS PRO
MYR61.11
1 Box of 10
Box(es)
3mm Short - HSS 46 mm
RS Stock No. 213-887
BrandRS PRO
MYR27.97
1 Box of 10
Box(es)
1mm Jobber - HSS-TiN 34 mm
RS Stock No. 213-758
BrandRS PRO
MYR48.73
1 Box of 10
Box(es)
2.8mm Jobber - HSS-TiN 61 mm
RS Stock No. 213-203
BrandRS PRO
MYR91.47
1 Box of 10
Box(es)
5mm Jobber - HSS-TiN 86 mm
RS Stock No. 787-7286
BrandRS PRO
MYR64.03
1 Tube of 5
Tube(s)
6mm Short - HSS-TiN 66 mm
RS Stock No. 787-7305
BrandRS PRO
MYR139.93
1 Tube of 5
Tube(s)
8mm Short - HSS-TiN 79 mm
RS Stock No. 787-7273
BrandRS PRO
MYR41.29
1 Tube of 5
Tube(s)
4mm Short - HSS-TiN 55 mm
RS Stock No. 787-7361
BrandRS PRO
MYR30.94
1 Tube of 5
Tube(s)
0.9mm Jobber - HSS 32 mm
RS Stock No. 213-089
BrandRS PRO
MYR42.36
1 Box of 10
Box(es)
2.5mm Jobber - HSS 56 mm
RS Stock No. 784-4775
BrandRS PRO
MYR158.87
Each
units
18mm Morse Taper - HSS 228 mm
RS Stock No. 618-9008
BrandRS PRO
MYR207.61
Each
units
7/8in Blacksmiths - HSS 150 mm
RS Stock No. 213-922
BrandRS PRO
MYR34.39
1 Box of 10
Box(es)
2.5mm Jobber - HSS-TiN 57 mm
RS Stock No. 212-963
BrandRS PRO
MYR56.53
1 Box of 10
Box(es)
3mm Jobber - HSS 59 mm
RS Stock No. 213-809
BrandRS PRO
MYR76.50
1 Box of 10
Box(es)
4.2mm Jobber - HSS-TiN 75 mm
RS Stock No. 213-398
BrandRS PRO
MYR56.70
1 Box of 10
Box(es)
3.3mm Jobber - HSS-TiN 65 mm
RS Stock No. 215-007
BrandRS PRO
MYR105.26
1 Box of 10
Box(es)
5mm Short - HSS 62 mm
RS Stock No. 408-7988
BrandRS PRO
MYR114.59
Each
units
16mm Blacksmiths - HSS 150 mm
RS Stock No. 784-4841
BrandRS PRO
MYR82.24
Each
units
18mm Jobber - HSS 156 mm
RS Stock No. 214-981
BrandRS PRO
MYR156.84
1 Box of 10
Box(es)
6.8mm Short - HSS 74 mm
RS Stock No. 784-4813
BrandRS PRO
MYR630.29
Each
units
31mm Morse Taper - HSS 301 mm
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