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庫存編號 787-7292
BrandRS PRO
HK$163.25
毎管:5 個
Tube(s)
7mm Short - HSS 74 mm
RS庫存編號 216-432
BrandRS PRO
HK$479.56
毎盒:10 個
Box(es)
8mm Jobber - HSCo 117 mm
RS庫存編號 213-411
BrandRS PRO
HK$93.69
毎盒:10 個
Box(es)
3mm Jobber - HSS 61 mm
RS庫存編號 784-4787
BrandRS PRO
HK$324.32
單位
20mm Morse Taper - HSS 238 mm
RS庫存編號 216-533
BrandRS PRO
HK$781.58
毎盒:10 個
Box(es)
10mm Jobber - HSCo 133 mm
RS庫存編號 408-8004
BrandRS PRO
HK$262.09
單位
20mm Blacksmiths - HSS 150 mm
RS庫存編號 212-963
BrandRS PRO
HK$108.68
毎盒:10 個
Box(es)
3mm Jobber - HSS 59 mm
RS庫存編號 213-168
BrandRS PRO
HK$187.84
毎盒:10 個
Box(es)
6.5mm Jobber - HSS 101 mm
RS庫存編號 213-304
BrandRS PRO
HK$109.02
毎盒:10 個
Box(es)
3.5mm Jobber - HSS 70 mm
RS庫存編號 216-583
BrandRS PRO
HK$505.70
毎盒:10 個
Box(es)
5mm Jobber - HSCo 86 mm
RS庫存編號 216-707
BrandRS PRO
HK$423.28
毎盒:10 個
Box(es)
6mm Jobber - HSCo 93 mm
RS庫存編號 787-7359
BrandRS PRO
HK$65.32
毎管:5 個
Tube(s)
0.8mm Jobber - HSS 30 mm
RS庫存編號 522-6910
BrandRS PRO
HK$383.13
單位
11mm Jobber; Long - HSS 315 mm
RS庫存編號 213-203
BrandRS PRO
HK$164.85
毎盒:10 個
Box(es)
5mm Jobber - HSS 86 mm
RS庫存編號 213-506
BrandRS PRO
HK$270.56
毎盒:5 個
Box(es)
11.5mm Jobber - HSS 142 mm
RS庫存編號 216-606
BrandRS PRO
HK$248.48
毎盒:10 個
Box(es)
4mm Jobber - HSCo 75 mm
RS庫存編號 213-281
BrandRS PRO
HK$199.97
毎盒:10 個
Box(es)
5.5mm Jobber - HSS 93 mm
RS庫存編號 213-691
BrandRS PRO
HK$354.07
毎盒:10 個
Box(es)
8.5mm Jobber - HSS 117 mm
RS庫存編號 214-240
BrandRS PRO
HK$285.31
毎盒:10 個
Box(es)
7mm Jobber - HSS 109 mm
RS庫存編號 213-613
BrandRS PRO
HK$267.12
毎盒:10 個
Box(es)
6.5mm Jobber - HSS 101 mm