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. 787-7305
BrandRS PRO
MYR139.93
1 Tube of 5
Tube(s)
8mm Short - HSS-TiN 79 mm
RS Stock No. 213-764
BrandRS PRO
MYR44.08
1 Box of 10
Box(es)
2.7mm Jobber - HSS-TiN 61 mm
RS Stock No. 784-4787
BrandRS PRO
MYR203.29
Each
units
20mm Morse Taper - HSS 238 mm
RS Stock No. 787-7311
BrandRS PRO
MYR80.55
1 Tube of 5
Tube(s)
9.5mm Short - HSS-TiN 84 mm
RS Stock No. 787-7289
BrandRS PRO
MYR55.00
1 Tube of 5
Tube(s)
5mm Short - HSS-TiN 62 mm
RS Stock No. 213-095
BrandRS PRO
MYR105.65
1 Box of 10
Box(es)
6mm Jobber - HSS 93.5 mm
RS Stock No. 694-475
BrandRS PRO
MYR378.11
Each
units
25mm Blacksmiths - HSS 240 mm
RS Stock No. 216-482
BrandRS PRO
MYR41.70
1 Box of 10
Box(es)
3.3mm Jobber - HSCo 65 mm
RS Stock No. 408-7972
BrandRS PRO
MYR97.74
Each
units
14mm Blacksmiths - HSS 150 mm
RS Stock No. 784-4857
BrandRS PRO
MYR93.56
Each
units
20mm Jobber - HSS 156 mm
RS Stock No. 784-4848
BrandRS PRO
MYR91.77
Each
units
19mm Jobber - HSS 156 mm
RS Stock No. 784-4769
BrandRS PRO
MYR119.85
Each
units
15mm Morse Taper - HSS 212 mm
RS Stock No. 217-407
BrandRS PRO
MYR120.19
1 Box of 10
Box(es)
4mm Jobber - HSS 75 mm
RS Stock No. 788-4984
BrandRS PRO
MYR32.43
1 Tube of 5
Tube(s)
1.65mm Jobber - HSS 43 mm
RS Stock No. 784-4771
BrandRS PRO
MYR153.27
Each
units
17mm Morse Taper - HSS 223 mm
RS Stock No. 213-916
BrandRS PRO
MYR30.29
1 Box of 10
Box(es)
2mm Jobber - HSS-TiN 49 mm
RS Stock No. 828-224
BrandRS PRO
MYR24.87
Each
units
5mm Hexagon - HSS -
RS Stock No. 213-499
BrandRS PRO
MYR400.98
1 Box of 10
Box(es)
10mm Jobber - HSS-TiN 133 mm
RS Stock No. 213-966
BrandRS PRO
MYR29.99
1 Box of 10
Box(es)
2.1mm Jobber - HSS-TiN 49 mm
RS Stock No. 784-4835
BrandRS PRO
MYR74.56
Each
units
16.5mm Jobber - HSS 156 mm
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