Center and Flat Drill Bits Set Manufacturer,Supplier and Exporter in India
Product Code : EL-MWLE-9211
Jlab Export is a leading Center and Flat Drill Bits Set Manufacturer,and suppliers in India
This set brings together two kinds of bit. The centre drills, 1 to 6.3 mm in diameter and 31.5 to 71 mm long, cut a short pilot hole with a cone above it. The cone is the seat for a lathe centre or a start for a twist drill. The flat drill bits, 6 to 40 mm across and 160 to 170 mm long, bore larger holes in wood.
Specifications
| Centre drills, diameter | 1–6.3 mm |
| Centre drills, length | 31.5–71 mm |
| Flat drill bits, diameter | 6–40 mm |
| Flat drill bits, length | 160–170 mm |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Workshop Practice with Centre and Flat Bits
Before a bar is turned between centres on the All Geared Lathe, students face each end. Next they cut a centre hole with a centre drill fed from the tailstock. In fitting practice the same drill spots the position of a hole on a marked plate. The hole is then taken to size with a bit from the HSS Universal Drill Bit Set, and the spot keeps it from wandering.
In the carpentry shop the flat bits bore holes for pipes, cables and dowels in timber. They run in the Drill Press with the work clamped down on a scrap backing board, so the far face does not splinter.
Frequently Asked Questions
What is a centre drill used for?
It cuts a small pilot hole and a cone in one pass. The cone gives a lathe centre a true seat, so the work runs on its axis. It also starts holes on a drilling machine, because its short, stiff body does not wander like a long twist drill.
Can a centre drill be used to drill deep holes?
No. Feed it only until the cone reaches the size you need. The thin pilot tip breaks easily if it is pushed deeper, so finish the hole with a twist drill of the right size.
What speed suits the flat drill bits?
Run the small flat bits faster and the large ones slower. A large bit at high speed burns the wood and can snatch the work. Let the centre point lead, use light pressure and ease off as the point breaks through.
How do I get a clean exit hole with a flat bit?
Clamp scrap board under the work, or drill until the point just shows and finish from the other side. Either way the wood fibres at the exit are supported and do not tear out.
Other Drill Bits for the Workshop
- Drills (cobalt and HSS twist drill sets)
- Forstner Bit Set (TCT edges and spurs)
- Gimlet Bits Set (pilot holes for screws)
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
