Drill Bits

Drill bits are cutting tools that are used to remove different types of materials to create a hole, generally always in a circular motion. Having the right size and the right type of bit is a key factor in ensuring the highest standard of work and ensures you can drill with confidence and accuracy.


Common types of drill bits



  • Twist – The most common type of drill bit and ideal for drilling wood, plastic, and metals. They are generally made from HSS and are suited to general household DIY tasks, as well as professional applications like maintenance and engineering.

  • Masonry – The TCT drill bits are the best to use when drilling brick, block, stone and mortar and are most commonly used in the construction industry. They are generally used with a hammer power tool for more effective results.

  • SDS (Slotted Drive System) – These have a special shank that fits into the chuck of an SDS power tool. The SDS system delivers a higher standard and more efficient results than a standard hammer drill when working with harder materials like concrete.

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Description Price Diameter Drill Bit Type Type Material Overall Length
RS Stock No. 136-3954
Mfr. Part No.A2423.0X8.0
BrandDormer
$35.58
Each
units
3 mm, 8 mm Centre Drill Bit - HSS-E 100 mm
RS Stock No. 728-7245
Mfr. Part No.A1254.0X315
BrandDormer
$42.94
Each
units
4mm Twist Drill Bit Long HSS 315 mm
RS Stock No. 768-3075
Mfr. Part No.2608585515
BrandBosch
$13.178
Each (In a Pack of 5)
units
9.1mm Twist Drill Bit Jobber HSS-G 125 mm
RS Stock No. 193-1575
Mfr. Part No.R4673.7
BrandDormer
$157.10
Each
units
3.7mm Twist Drill Bit - Carbide 62 mm
RS Stock No. 768-3129
Mfr. Part No.2608585531
BrandBosch
$20.70
Each (In a Pack of 5)
units
11.2mm Twist Drill Bit Jobber HSS-G 142 mm
RS Stock No. 213-326
BrandRS PRO
$73.90
1 Box of 5
Box(es)
10.5mm Twist Drill Bit Jobber HSS 133 mm
RS Stock No. 768-3185
Mfr. Part No.2608585891
BrandBosch
$12.971
Each (In a Pack of 10)
units
6.8mm Twist Drill Bit Twist Drill HSS 109 mm
RS Stock No. 794-7460
Mfr. Part No.2FRA0029.0
BrandDormer
$105.60
1 Box of 10
Box(es)
9mm Twist Drill Bit Jobber HSS-TiN 125 mm
RS Stock No. 136-3953
Mfr. Part No.A2422.0X6.0
BrandDormer
$31.08
Each
units
2 mm, 6 mm Centre Drill Bit - HSS-E 100 mm
RS Stock No. 768-3182
Mfr. Part No.2608585893
BrandBosch
$13.327
Each (In a Pack of 10)
units
7.5mm Twist Drill Bit Twist Drill HSS 109 mm
RS Stock No. 768-3015
Mfr. Part No.2608585485
BrandBosch
$2.778
Each (In a Pack of 10)
units
3.9mm Twist Drill Bit Jobber HSS-G 75 mm
RS Stock No. 184-8184
BrandRS PRO
$8.70
Each
units
- Flat Wood Drill Bit - Chrome Vanadium Steel 152.4 mm
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