P&N 105SDC000 - 4 Piece Quickbit Countersink Drill Bit Set
P&N Quickbit Drill / Countersinks are designed to drill screw pilot hole and countersink in one action and are suitable for drilling timber and plastic. The P&N Quickbit range has been specifically developed to provide quick change-over of standard 1/4" hex shank power bits. This comprehensive range of power drill bits and accessories is for trade and home handyman use and allows the operator to simply and efficiently use one power tool for all operations. Central to the range is the Quickbit Adaptor, which aids in the simple change over and instant locking of any 1/4" hex shank bit without the use of a chuck key. Changing from a drill to a screwdriver bit is no longer a laborious task - there’s no more need for repetitious chuck loosening and tightening or using two drills.
P&N Quickbit Drill / Countersinks are designed to drill screw pilot hole and countersink in one action and are suitable for drilling timber and plastic. The P&N Quickbit range has been specifically developed to provide quick change-over of standard 1/4" hex shank power bits. This comprehensive range of power drill bits and accessories is for trade and home handyman use and allows the operator to simply and efficiently use one power tool for all operations. Central to the range is the Quickbit Adaptor, which aids in the simple change over and instant locking of any 1/4" hex shank bit without the use of a chuck key. Changing from a drill to a screwdriver bit is no longer a laborious task - there’s no more need for repetitious chuck loosening and tightening or using two drills.
P&N Quickbit Drill / Countersinks are designed to drill screw pilot hole and countersink in one action and are suitable for drilling timber and plastic. The P&N Quickbit range has been specifically developed to provide quick change-over of standard 1/4" hex shank power bits. This comprehensive range of power drill bits and accessories is for trade and home handyman use and allows the operator to simply and efficiently use one power tool for all operations. Central to the range is the Quickbit Adaptor, which aids in the simple change over and instant locking of any 1/4" hex shank bit without the use of a chuck key. Changing from a drill to a screwdriver bit is no longer a laborious task - there’s no more need for repetitious chuck loosening and tightening or using two drills.
P&N Quickbit Drill / Countersinks are designed to drill screw pilot hole and countersink in one action and are suitable for drilling timber and plastic. The P&N Quickbit range has been specifically developed to provide quick change-over of standard 1/4" hex shank power bits. This comprehensive range of power drill bits and accessories is for trade and home handyman use and allows the operator to simply and efficiently use one power tool for all operations. Central to the range is the Quickbit Adaptor, which aids in the simple change over and instant locking of any 1/4" hex shank bit without the use of a chuck key. Changing from a drill to a screwdriver bit is no longer a laborious task - there’s no more need for repetitious chuck loosening and tightening or using two drills.
in 23 offers
The lowest price for P&N 105SDC000 - 4 Piece Quickbit Countersink Drill Bit Set right now is $15.85 at Cost Less Bolts, compared across 21 retailers.
The all-time low was $12.58 on 23 Nov 2023 — today's price is 26% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 19 Oct 2026.
Last updated at 19/10/2026 19:16:51
Sutton Tools
Delivery between Wed – Mon $27.50
P&N Quickbit HSS Drill & Countersink Eco Set 4 Piece – 105SDC000
Delivery by Thu $25
P&N 4PC HSS Drill & Countersink Quickbit Eco Set 105SDC000
Delivery between 22–28 Oct $12.90
Drill HSS Countersink Set Quickbit Hex Shank 5PC P&N 105SDC000
Delivery between Tue – Thu $9.70
Drill Countersink 5 Pce Set
Drill Hss & Countersink Quickbit Eco Set 4PC P&N
Drill Hss & Countersink Quickbit Eco Set 4PC P&N
Bit Drill Pilot & Countersink Quickbit 5Pc Sutton
Delivery between 23 Oct – 2 Nov $9.99
P&N 4 Piece Screw Pilot Drill/Countersink Set - 105SDC000
Delivery between 21–27 Oct $17.10
P&N Quickbit Countersink Drill Set 4 Piece at Bowens
Delivery between Tue – Thu $10
originally posted on bunnings.com.au
Bought these a few months back and they work fine in pine timber. Once I tried in hardware (merbau), game over. One drill bit snapped (6g) and the other (8g) got stuck deep in the timber and was irretrievable! That is 2 busted. Then only 1 of the 2 bits were able to be removed using the supplied allen key. Very disappointing.
originally posted on bunnings.com.au
Very happy with the quality and the job it does but not so happy with replacement parts. Broke one of the drill bits so went to get a replacement. It cost almost the same as the whole set and a normal drill bit won't work in them. Rather disappointing as I was so pleased finding these.
originally posted on bunnings.com.au
Good value countersink bit set for four different gauge screws. These bits do not stop when you drill to the required depth, and unless you are controlling your drill, the bit will keep digging especially in soft materials. I rate this set, and it is the second set I have purchased. A spare set of replacement pilot drills for the countersink bit would be a handy addition - sometimes available to purchase together. There are fancier counter sink bits available but they also have fancier prices. Good for a home DIYer.
| Size | 1/4 inch (hex shank) |
| Durability Material | Carbon steel (countersink), M2 High Speed Steel (HSS) |
| Is Set | Yes |
| Drill Bit Type | Pilot Drill |
| Type | Drill bit |
Sutton Tools
Delivery between Wed – Mon $27.50
P&N Quickbit HSS Drill & Countersink Eco Set 4 Piece – 105SDC000
Delivery by Thu $25
P&N 4PC HSS Drill & Countersink Quickbit Eco Set 105SDC000
Delivery between 22–28 Oct $12.90
Drill HSS Countersink Set Quickbit Hex Shank 5PC P&N 105SDC000
Delivery between Tue – Thu $9.70
Drill Countersink 5 Pce Set
Bought these a few months back and they work fine in pine timber. Once I tried in hardware (merbau), game over. One drill bit snapped (6g) and the other (8g) got stuck deep in the timber and was irretrievable! That is 2 busted. Then only 1 of the 2 bits were able to be removed using the supplied allen key. Very disappointing.
Very happy with the quality and the job it does but not so happy with replacement parts. Broke one of the drill bits so went to get a replacement. It cost almost the same as the whole set and a normal drill bit won't work in them. Rather disappointing as I was so pleased finding these.
Good value countersink bit set for four different gauge screws. These bits do not stop when you drill to the required depth, and unless you are controlling your drill, the bit will keep digging especially in soft materials. I rate this set, and it is the second set I have purchased. A spare set of replacement pilot drills for the countersink bit would be a handy addition - sometimes available to purchase together. There are fancier counter sink bits available but they also have fancier prices. Good for a home DIYer.
I love the fact that the drill bits can be adjusted or replaced. Locked with a grub screw. 6, 8,10&12g. Great starter set and well priced.
These are just terrible quality and very poorly designed. The cutting edges are not sharp, and the design doesn’t work well. One of them was also bent.
Not gonna lie these are not good at all. The drill itself is good but the counter sink doesn't work properly in all types of of wood for example if you're drilling into a sheet that has laminated surface they don't counter sink enough and it really struggles. You get what you pay for with these.
Poor quality and the edges are not sharp enough. Used for once, one of the Hex screws is loose and cannot tight enough. Very disappointing
Great quality, very happy with this product and service provided
very easy to use and it does the job well
| Size | 1/4 inch (hex shank) |
| Durability Material | Carbon steel (countersink), M2 High Speed Steel (HSS) |
| Is Set | Yes |
| Drill Bit Type | Pilot Drill |
| Type | Drill bit |
