Flat File Manufacturer,Supplier and Exporter in India
Product Code : EL-MWLE-9238
Jlab Export is a leading Flat File Manufacturer,and suppliers in India
A bastard-cut flat file is the roughing file of the fitting bench, used to bring sawn or chipped metal down to a scribed line. This machinist pattern file is 200 mm long. Its faces are double cut for fast metal removal, and its edges are single cut for narrow slots and corners.
Specifications
| Pattern | Machinist flat file |
| Cut | Bastard |
| Length | 200 mm |
| Faces | Double cut |
| Edges | Single cut |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Workshop Exercises with the Flat File
A common early fitting job is cutting a mild steel bar to length and filing the end square. Students mark the line with a Single Ended Scriber and cut just outside it with a Hacksaw. They then cross file with this bastard file until the line is reached.
Later exercises use the single cut edge to file the floor of a narrow slot or step. Draw filing, with the file held crosswise and pushed along a long edge, straightens that edge before a finer file takes over. Chips that lodge in the teeth scratch the work, so the file is cleaned often with a Wire Brush For Cleaning Files.
Frequently Asked Questions
What does bastard cut mean?
It is the coarsest of the three common grades, ahead of second cut and smooth. A bastard file has the biggest teeth of the three for its length. It removes metal fastest and leaves a rough surface for a finer file to clean up.
Why are the faces double cut and the edges single cut?
Double cut faces carry two crossing rows of teeth, which take metal off quickly. A single cut edge has one row of parallel teeth and cuts with less force, so it is easier to steer in a narrow slot or corner.
What is the difference between cross filing and draw filing?
In cross filing the file is pushed along its length across the work, the normal way to remove metal. In draw filing it is held crosswise in both hands and moved along the work, which straightens and smooths long edges.
Should I press on the return stroke?
No. A file cuts only on the forward stroke, so lift the pressure on the way back or the teeth dull. Keep the file level as you push, so the face stays flat instead of rocking into a curve.
How is this file different from the Engineers Flat Files set?
This is a single 200 mm flat file in bastard cut, for roughing. The Engineers Flat Files set holds several flat files in bastard, second and smooth cuts, for taking a job from rough to finished.
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Last updated: 5 November 2026
