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. 213-130
BrandRS PRO
$42.35
1 Box of 10
Box(es)
7.5mm Jobber - HSS 110 mm
RS Stock No. 669-9362
BrandRS PRO
$6.56
Each
units
2.5mm Hexagon - HSS 38 mm
RS Stock No. 784-4810
BrandRS PRO
$15.34
Each
units
14.5mm Jobber - HSS 156 mm
RS Stock No. 668-0958
BrandRS PRO
$20.53
1 Box of 10
Box(es)
9/64in Jobber - HSS 70 mm
RS Stock No. 784-4784
BrandRS PRO
$55.33
Each
units
19mm Morse Taper - HSS 233 mm
RS Stock No. 213-180
BrandRS PRO
$41.44
1 Box of 10
Box(es)
5.2mm Jobber - HSS 86 mm
RS Stock No. 788-4987
BrandRS PRO
$12.56
1 Tube of 5
Tube(s)
1.75mm Jobber - HSS 46 mm
RS Stock No. 784-4771
BrandRS PRO
$53.32
Each
units
17mm Morse Taper - HSS 223 mm
RS Stock No. 213-039
BrandRS PRO
$21.49
1 Box of 10
Box(es)
5.5mm Jobber - HSS 93 mm
RS Stock No. 216-656
BrandRS PRO
$32.77
1 Box of 10
Box(es)
2.5mm Jobber - HSCo 57 mm
RS Stock No. 787-7349
BrandRS PRO
$14.74
1 Tube of 5
Tube(s)
0.6mm Jobber - HSS 24 mm
RS Stock No. 213-944
BrandRS PRO
$10.43
1 Box of 10
Box(es)
2.3mm Jobber - HSS 53 mm
RS Stock No. 213-534
BrandRS PRO
$135.30
1 Box of 5
Box(es)
12mm Jobber - HSS 151 mm
RS Stock No. 522-6881
BrandRS PRO
$79.47
Each
units
10mm Jobber; Long - HSS 400 mm
RS Stock No. 784-4769
BrandRS PRO
$40.97
Each
units
15mm Morse Taper - HSS 212 mm
RS Stock No. 213-073
BrandRS PRO
$18.30
1 Box of 10
Box(es)
3.5mm Jobber - HSS 70 mm
RS Stock No. 213-821
BrandRS PRO
$19.67
1 Box of 10
Box(es)
4mm Jobber - HSS 75 mm
RS Stock No. 784-4762
BrandRS PRO
$33.43
Each
units
13mm Morse Taper - HSS 182 mm
RS Stock No. 213-067
BrandRS PRO
$19.89
1 Box of 10
Box(es)
4mm Jobber - HSS 75.5 mm
RS Stock No. 216-612
BrandRS PRO
$35.18
1 Box of 10
Box(es)
3.5mm Jobber - HSCo 70 mm
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