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 Shank Size Series Shank Type Cutting Length Point Angle
RS Stock No. 794-7509
Mfr. Part No.A1083.0
BrandDormer
kr 257,21
1 Box of 10
Box(es)
3mm Jobber Multi-Material HSS 61 mm - - - - -
RS Stock No. 667-3487
Mfr. Part No.R4583.0
BrandDormer
kr 450,61
Each
Units
3mm Short - Solid Carbide 62 mm - - - - -
RS Stock No. 216-628
BrandRS PRO
kr 86,11
1 Box of 10
Box(es)
4.2mm Jobber - HSCo 75 mm - - - - -
RS Stock No. 794-7436
Mfr. Part No.2FRA0025.0
BrandDormer
kr 162,50
1 Box of 10
Box(es)
5mm Jobber Multi-Material HSS-TiN 86 mm - - - - -
RS Stock No. 794-7612
Mfr. Part No.A7775.0
BrandDormer
kr 507,43
1 Box of 10
Box(es)
5mm Jobber - HSS-E 86 mm - - - - -
RS Stock No. 213-203
BrandRS PRO
kr 73,84
1 Box of 10
Box(es)
5mm Jobber - HSS-TiN 86 mm - - - - -
RS Stock No. 794-7307
Mfr. Part No.A0025.0
BrandDormer
kr 81,75
1 Box of 5
Box(es)
5mm Jobber Multi-Material HSS-TiN 86 mm - - - - -
RS Stock No. 216-640
BrandRS PRO
kr 83,64
1 Box of 10
Box(es)
1mm Jobber - HSCo 34 mm - - - - -
RS Stock No. 214-925
BrandRS PRO
kr 73,30
1 Box of 10
Box(es)
3mm Short - HSS 46 mm - - - - -
RS Stock No. 794-7521
Mfr. Part No.A1085.0
BrandDormer
kr 403,75
1 Box of 10
Box(es)
5mm Jobber Multi-Material HSS 86 mm - - - - -
RS Stock No. 768-3160
Mfr. Part No.2608585885
BrandBosch
kr 38,573
Each (In a Pack of 10)
Units
5mm Twist Drill - HSS 86 mm - - - - -
RS Stock No. 408-7972
BrandRS PRO
kr 179,96
Each
Units
14mm Blacksmiths - HSS 150 mm - - - - -
RS Stock No. 213-067
BrandRS PRO
kr 53,77
1 Box of 10
Box(es)
4mm Jobber - HSS 75.5 mm - - - - -
RS Stock No. 768-3283
Mfr. Part No.2608595073
BrandBosch
kr 55,80
Each (In a Pack of 5)
Units
8.5mm Jobber - HSS-G 117 mm - - - - -
RS Stock No. 784-4790
BrandRS PRO
kr 447,84
Each
Units
22mm Morse Taper - HSS 248 mm - - - - -
RS Stock No. 213-073
BrandRS PRO
kr 43,11
1 Box of 10
Box(es)
3.5mm Jobber - HSS 70 mm - - - - -
RS Stock No. 768-3245
Mfr. Part No.2608595060
BrandBosch
kr 17,058
Each (In a Pack of 10)
Units
4.2mm Jobber - HSS-G 75 mm - - - - -
RS Stock No. 216-482
BrandRS PRO
kr 77,62
1 Box of 10
Box(es)
3.3mm Jobber - HSCo 65 mm - - - - -
RS Stock No. 162-4146
Mfr. Part No.3128820051709
BrandTivoly
kr 67,29
Each
Units
8mm Jobber; Self Centring - HSS - - - - - -
RS Stock No. 513-001
Mfr. Part No.A100 2-4MM
BrandDormer
kr 11,166
Each (In a Pack of 5)
Units
2.4mm Jobber Multi-Material HSS 57 mm - - - - -