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 768-3148
製造零件編號2608585875
BrandBosch
HK$16.635
/個 (每包:10個)
單位
2.5mm Twist Drill - HSS 57 mm
RS庫存編號 768-3138
製造零件編號2608585842
BrandBosch
HK$21.81
單位
3mm Twist Drill - HSS 61 mm
RS庫存編號 787-7292
BrandRS PRO
HK$116.85
毎管:5 個
Tube(s)
7mm Short - HSS 74 mm
RS庫存編號 768-3172
製造零件編號2608585889
BrandBosch
HK$38.437
/個 (每包:10個)
單位
6mm Twist Drill - HSS 93 mm
RS庫存編號 794-7628
製造零件編號A7776.5
BrandDormer
HK$806.31
毎盒:10 個
Box(es)
6.5mm Jobber - HSS-E 101 mm
RS庫存編號 695-0459
製造零件編號A9002.0
BrandDormer
HK$48.88
單位
2mm Jobber - HSCo 49 mm
RS庫存編號 695-0443
製造零件編號A9001.0
BrandDormer
HK$54.99
單位
1mm Jobber - HSCo 34 mm
RS庫存編號 768-3242
製造零件編號2608595059
BrandBosch
HK$12.774
/個 (每包:10個)
單位
4mm Jobber - HSS-G 75 mm
RS庫存編號 768-3150
製造零件編號2608585879
BrandBosch
HK$24.212
/個 (每包:10個)
單位
3.5mm Twist Drill - HSS 70 mm
RS庫存編號 794-7650
製造零件編號A77712.0
BrandDormer
HK$1,512.04
毎盒:5 個
Box(es)
12mm Jobber - HSS-E 151 mm
RS庫存編號 216-432
BrandRS PRO
HK$475.13
毎盒:10 個
Box(es)
8mm Jobber - HSCo 117 mm
RS庫存編號 386-8269
製造零件編號A002 8.80MM
BrandDormer
HK$66.02
單位
8.8mm Jobber - HSS 125 mm
RS庫存編號 768-3227
製造零件編號2608595055
BrandBosch
HK$8.96
/個 (每包:10個)
單位
3mm Twist Drill - HSS-G 61 mm
RS庫存編號 794-7518
製造零件編號A1083.3
BrandDormer
HK$248.31
毎盒:10 個
Box(es)
3.3mm Jobber Multi-Material HSS 65 mm
RS庫存編號 695-0352
製造零件編號A9403.5
BrandDormer
HK$123.08
單位
3.5mm Long - HSCo 112 mm
RS庫存編號 794-7580
製造零件編號A7771.0
BrandDormer
HK$383.62
毎盒:10 個
Box(es)
1mm Jobber - HSS-E 34 mm
RS庫存編號 213-411
BrandRS PRO
HK$84.42
毎盒:10 個
Box(es)
3mm Jobber - HSS 61 mm
RS庫存編號 768-3166
製造零件編號2608585883
BrandBosch
HK$30.886
/個 (每包:10個)
單位
4.5mm Twist Drill - HSS 80 mm
RS庫存編號 794-7631
製造零件編號A7777.0
BrandDormer
HK$840.02
毎盒:10 個
Box(es)
7mm Jobber - HSS-E 109 mm
RS庫存編號 768-3217
製造零件編號2608595049
BrandBosch
HK$8.659
/個 (每包:10個)
單位
1mm Jobber - HSS-G 34 mm