Yankee Screwdriver Manufacturer,Supplier and Exporter in India
Product Code : EL-MWLE-9354
Jlab Export is a leading Yankee Screwdriver Manufacturer,and suppliers in India
A spiral ratchet screwdriver drives screws by pushing instead of twisting. Each push on the handle spins the spiral spindle and the bit, and a spring brings the handle back for the next stroke. It comes in two sizes, a medium 510 mm and a large 710 mm. Each size includes 2 cross-head and 3 flat bits.
Sizes and Bits
| Type | Spiral ratchet screwdriver |
| Medium size | 510 mm, with 2 cross-head and 3 flat bits |
| Large size | 710 mm, with 2 cross-head and 3 flat bits |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Carpentry Practicals with the Screwdriver
A joinery class can use it to fix a row of hinges or assemble a small frame. Students bore pilot holes with the Gimlet Bits Set and start each Screw by hand. Then they drive it home with steady pushes, keeping the cross-head bit square in the recess.
A useful comparison exercise is to drive ten screws with an ordinary driver from the Screwdrivers set and ten with the spiral ratchet, timing both. Students see how much faster push driving is on repeat work. They also learn why the last turn is better done by hand, so the head is not driven too deep.
Frequently Asked Questions
How does a spiral ratchet screwdriver work?
The spindle has a spiral groove. Pushing the handle down makes the spindle and bit rotate, and the return spring lifts the handle for the next push. A shifter on drivers of this type sets the drive direction, so the same tool puts screws in and takes them out.
What is the difference between the medium and large sizes?
The medium size is 510 mm and the large size is 710 mm, and both come with 2 cross-head and 3 flat bits. The longer driver turns the screw more per push and reaches further. The medium one is easier to handle in tight cabinet work.
Which bits come with it, and how do I choose one?
Each size includes 2 cross-head bits and 3 flat bits. Pick the cross-head bit that fills the recess fully, or the flat bit that matches the width of the slot. A bit that is too small slips and chews the screw head.
How do I stop the bit slipping off the screw?
Start the screw by hand so it stands straight, hold the driver in line with it and push firmly but smoothly. Clamp small work in a vice rather than holding it, so a slipping bit cannot reach your hand.
Other Hand Tools and Workshop Items
- Bench Vice
- Tool Box
- Work Bench (double, beech top)
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Last updated: 5 November 2026
