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, it’s 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 it’s 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 it’s 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 768-2918
製造零件編號2608585433
BrandBosch
HK$41.678
/個 (每包:10個)
單位
1/64in Twist Drill - HSS 20 mm
RS庫存編號 213-124
BrandRS PRO
HK$232.18
毎盒:10 個
Box(es)
8mm Jobber - HSS 117 mm
RS庫存編號 784-4813
BrandRS PRO
HK$729.50
單位
31mm Morse Taper - HSS 301 mm
RS庫存編號 669-9362
BrandRS PRO
HK$26.03
單位
2.5mm Hexagon - HSS 38 mm
RS庫存編號 667-3522
製造零件編號R4587.5
BrandDormer
HK$443.90
單位
7.5mm Short - Solid Carbide 79 mm
RS庫存編號 759-5772
製造零件編號2608596721
BrandBosch
HK$181.52
單位
7mm Self Centring - HSS 109 mm
RS庫存編號 768-3334
製造零件編號2608595334
BrandBosch
HK$20.35
/個 (每包:10個)
單位
4.8mm Jobber - HSS-G 86 mm
RS庫存編號 768-3069
製造零件編號2608585510
BrandBosch
HK$58.468
/個 (每包:5個)
單位
8.3mm Jobber - HSS-G 117 mm
RS庫存編號 707-2790
製造零件編號DT4908-QZ
BrandDeWALT
HK$60.94
單位
6mm - - HSCo 93 mm
RS庫存編號 728-7263
製造零件編號A1251/4X315
BrandDormer
HK$337.72
單位
1/4in Long - HSS 315 mm
RS庫存編號 792-052
製造零件編號A110-1-5MM
BrandDormer
HK$33.58
單位
1.5mm Long - HSS 70 mm
RS庫存編號 695-0346
製造零件編號A9403.0
BrandDormer
HK$104.52
單位
3mm Long - HSCo 100 mm
RS庫存編號 343-0296
製造零件編號LD/095
BrandVolkel
HK$28.50
單位
9.5mm Jobber - HSS 125 mm
RS庫存編號 667-3556
製造零件編號R45812.0
BrandDormer
HK$741.87
單位
12mm Short - Solid Carbide 102 mm
RS庫存編號 213-887
BrandRS PRO
HK$34.05
毎盒:10 個
Box(es)
1mm Jobber - HSS 34 mm
RS庫存編號 768-3318
製造零件編號2608595332
BrandBosch
HK$15.655
/個 (每包:10個)
單位
3.6mm Jobber - HSS-G 70 mm
RS庫存編號 728-7188
製造零件編號A12011.0
BrandDormer
HK$130.11
單位
11mm Short - HSS 95 mm
RS庫存編號 343-1479
製造零件編號R100 7.0MM
BrandDormer
HK$913.34
單位
7mm Jobber - Solid Carbide 109 mm
RS庫存編號 213-269
BrandRS PRO
HK$162.90
毎盒:10 個
Box(es)
5.8mm Jobber - HSS 93 mm
RS庫存編號 792-119
製造零件編號A110-4-5MM
BrandDormer
HK$48.73
單位
4.5mm Long - HSS 126 mm