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 Shank Size Series Shank Type Cutting Length Point Angle
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 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 214-076
BrandRS PRO
HK$387.19
毎盒:10 個
Box(es)
9.5mm Jobber HSS 125 mm - - - - -
RS庫存編號 707-2780
製造零件編號DT4904-QZ
BrandDeWALT
HK$65.79
單位
4mm - HSCo 75 mm - - - - -
RS庫存編號 213-039
BrandRS PRO
HK$85.64
毎盒:10 個
Box(es)
5.5mm Jobber HSS 93 mm - - - - -
RS庫存編號 728-7175
製造零件編號A1208.0
BrandDormer
HK$56.33
單位
8mm Short HSS 117 mm - - - - -
RS庫存編號 813-0027
製造零件編號A002S6.5
BrandDormer
HK$40.43
單位
6.5mm Jobber HSS-TiN 101 mm - - - - -
RS庫存編號 386-5355
製造零件編號A160 10.0MM
BrandDormer
HK$350.87
單位
10mm Jobber HSS; Solid Carbide Tipped 133 mm - - - - -
RS庫存編號 217-249
BrandRS PRO
HK$224.04
毎盒:10 個
Box(es)
5.5mm Jobber HSS 93 mm - - - - -
RS庫存編號 216-448
BrandRS PRO
HK$336.93
毎盒:10 個
Box(es)
7.5mm Jobber HSCo 109 mm - - - - -
RS庫存編號 768-3188
製造零件編號2608585892
BrandBosch
HK$54.751
/個 (每包:10個)
單位
7mm Twist Drill HSS 109 mm - - - - -
RS庫存編號 794-7325
製造零件編號A0025.5
BrandDormer
HK$129.49
毎盒:5 個
Box(es)
5.5mm Jobber HSS-TiN 93 mm - - - - -
RS庫存編號 759-5760
製造零件編號2608596701
BrandBosch
HK$97.53
單位
5mm Self Centring HSS 86 mm - - - - -
RS庫存編號 784-4781
BrandRS PRO
HK$258.50
單位
21mm Morse Taper HSS 243 mm - - Morse Taper 145mm 118°
RS庫存編號 299-7849
製造零件編號A170-16,00
BrandDormer
HK$449.74
單位
16mm - HSS 157 mm - - - - -
RS庫存編號 794-7509
製造零件編號A1083.0
BrandDormer
HK$255.99
毎盒:10 個
Box(es)
3mm Jobber HSS 61 mm - - - - -
RS庫存編號 787-7330
BrandRS PRO
HK$61.51
毎管:5 個
Tube(s)
0.4mm Jobber HSS 21 mm - - - - -
RS庫存編號 768-3306
製造零件編號2608595081
BrandBosch
HK$133.012
/個 (每包:5個)
單位
12mm Twist Drill HSS 151 mm - - - - -
RS庫存編號 768-3062
製造零件編號2608585508
BrandBosch
HK$58.468
/個 (每包:5個)
單位
8.1mm Twist Drill HSS 117 mm - - - - -
RS庫存編號 213-635
BrandRS PRO
HK$166.03
毎盒:10 個
Box(es)
6mm Jobber HSS 93 mm - - - - -