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 Material Overall Length
RS庫存編號 794-7587
製造零件編號A7772.0
BrandDormer
HK$303.32
毎盒:10 個
Box(es)
2mm Jobber HSS-E 49 mm
RS庫存編號 794-7638
製造零件編號A7778.0
BrandDormer
HK$1,099.27
毎盒:10 個
Box(es)
8mm Jobber HSS-E 117 mm
RS庫存編號 212-963
BrandRS PRO
HK$81.63
毎盒:10 個
Box(es)
3mm Jobber HSS 59 mm
RS庫存編號 695-0481
製造零件編號A9004.2
BrandDormer
HK$72.18
單位
4.2mm Jobber HSCo 75 mm
RS庫存編號 213-203
BrandRS PRO
HK$134.64
毎盒:10 個
Box(es)
5mm Jobber HSS 86 mm
RS庫存編號 768-3255
製造零件編號2608595064
BrandBosch
HK$23.585
/個 (每包:10個)
單位
5.5mm Jobber HSS-G 93 mm
RS庫存編號 343-1407
製造零件編號R100 3.5MM
BrandDormer
HK$309.30
單位
3.5mm Jobber Solid Carbide 70 mm
RS庫存編號 792-147
製造零件編號A110-6MM
BrandDormer
HK$71.29
單位
6mm Long HSS 139 mm
RS庫存編號 213-506
BrandRS PRO
HK$213.95
毎盒:5 個
Box(es)
11.5mm Jobber HSS 142 mm
RS庫存編號 213-281
BrandRS PRO
HK$137.40
毎盒:10 個
Box(es)
5.5mm Jobber HSS 93 mm
RS庫存編號 768-3154
製造零件編號2608585880
BrandBosch
HK$20.874
/個 (每包:10個)
單位
4mm Twist Drill HSS 75 mm
RS庫存編號 728-7103
製造零件編號A1203.0
BrandDormer
HK$14.69
單位
3mm Short HSS 46 mm
RS庫存編號 768-3160
製造零件編號2608585885
BrandBosch
HK$40.398
/個 (每包:10個)
單位
5mm Twist Drill HSS 86 mm
RS庫存編號 522-6910
BrandRS PRO
HK$283.46
單位
11mm Jobber; Long HSS 315 mm
RS庫存編號 216-606
BrandRS PRO
HK$147.77
毎盒:10 個
Box(es)
4mm Jobber HSCo 75 mm
RS庫存編號 768-3283
製造零件編號2608595073
BrandBosch
HK$48.098
/個 (每包:5個)
單位
8.5mm Jobber HSS-G 117 mm
RS庫存編號 768-3267
製造零件編號2608595066
BrandBosch
HK$23.439
/個 (每包:10個)
單位
6mm Jobber HSS-G 93 mm
RS庫存編號 213-691
BrandRS PRO
HK$293.19
毎盒:10 個
Box(es)
8.5mm Jobber HSS 117 mm
RS庫存編號 178-080
製造零件編號A100 1-4
BrandDormer
HK$16.93
/個 (每包:5個)
單位
1.4mm Jobber HSS 40 mm
RS庫存編號 299-7928
製造零件編號A170-20,00
BrandDormer
HK$584.63
單位
20mm - HSS 158 mm