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 695-0431
製造零件編號A94012.0
BrandDormer
HK$762.59
單位
12mm Long - HSCo 205 mm
RS庫存編號 695-0399
製造零件編號A9406.0
BrandDormer
HK$235.55
單位
6mm Long - HSCo 139 mm
RS庫存編號 768-2937
製造零件編號2608585442
BrandBosch
HK$17.126
/個 (每包:10個)
單位
5/32in Twist Drill - HSS 75 mm
RS庫存編號 792-068
製造零件編號A110-2MM
BrandDormer
HK$35.34
單位
2mm Long - HSS 85 mm
RS庫存編號 828-0263
製造零件編號A002S3.3
BrandDormer
HK$16.415
/個 (每包:2個)
單位
3.3mm Jobber - HSS-TiN 65 mm
全新
RS庫存編號 194-7855
製造零件編號B-57439
BrandMakita
HK$32.60
單位
4.5mm Drill Bit Metal HSS-TiN 110 mm
RS庫存編號 162-4146
製造零件編號3128820051709
BrandTivoly
HK$65.32
單位
8mm Jobber; Self Centring - HSS -
RS庫存編號 707-2778
製造零件編號DT4902-QZ
BrandDeWALT
HK$50.84
單位
3mm - - HSCo 61 mm
RS庫存編號 794-7341
製造零件編號A0026.3
BrandDormer
HK$149.41
毎盒:5 個
Box(es)
6.3mm Jobber Multi-Material HSS-TiN 101 mm
RS庫存編號 695-0582
製造零件編號A9201/16
BrandDormer
HK$52.51
單位
1/16in Short - HSCo 41 mm
RS庫存編號 828-0279
製造零件編號A002S4.1
BrandDormer
HK$23.28
/個 (每包:2個)
單位
4.1mm Jobber - HSS-TiN 75 mm
RS庫存編號 794-7476
製造零件編號2FRA00210.5
BrandDormer
HK$404.29
毎盒:5 個
Box(es)
10.5mm Jobber Multi-Material HSS-TiN 133 mm
RS庫存編號 768-2987
製造零件編號2608585460
BrandBosch
HK$99.116
/個 (每包:5個)
單位
7/16in Twist Drill - HSS 142 mm
RS庫存編號 768-3185
製造零件編號2608585891
BrandBosch
HK$69.269
/個 (每包:10個)
單位
6.8mm Twist Drill - HSS 109 mm
RS庫存編號 728-7166
製造零件編號A1207.5
BrandDormer
HK$52.17
單位
7.5mm Short - HSS 74 mm
全新
RS庫存編號 193-1568
製造零件編號R4673.1
BrandDormer
HK$783.30
單位
3.1mm M Drill - Carbide 62 mm
RS庫存編號 794-7271
製造零件編號A0023.8
BrandDormer
HK$83.86
毎盒:5 個
Box(es)
3.8mm Jobber Multi-Material HSS-TiN 75 mm
RS庫存編號 162-4073
製造零件編號3128820051631
BrandTivoly
HK$43.47
毎盒:2 個
Box(es)
3.5mm Jobber; Self Centring - HSS -
RS庫存編號 695-0673
製造零件編號A9208.5
BrandDormer
HK$223.19
單位
8.5mm Short - HSCo 79 mm
RS庫存編號 136-3926
製造零件編號A1234.8
BrandDormer
HK$27.181
/個 (每包:10個)
單位
4.8mm Stub - HSS 62 mm