Description
Key Selling Points
- Adjustable throat depth from 0 to 135mm (0 to 5.3 in) lets you position the blade for cuts at varying distances from the workpiece edge
- High carbon steel frame provides the rigidity needed for accurate, controlled cuts in metal, wood, plastic, and stone materials
- U-shaped design accepts standard saw blades and allows blade rotation for angled or directional cutting
- Three frame sizes — ASB 300, ASB 400, ASB 500 — to match the scale of your workpiece and the type of cuts you make most often
- Lightweight at approximately 300g (10.6 oz) — comfortable for extended hand-sawing sessions without fatigue
- Compatible with a wide range of materials: wood, bamboo, horn, amber, seal stone, acrylic, PPR pipe, plastic, copper tube, and aluminum
About This Bow Saw
The Tooltos Adjustable Bow Saw Frame is a versatile hand saw designed for jewelers, woodworkers, and craftspeople who need precise, controlled cutting across a range of materials. The adjustable U-shaped frame accepts standard saw blades and allows you to set the throat depth to suit the workpiece — from flush cuts near the edge to cuts up to 135mm (5.3 in) from the material edge.
The high carbon steel construction keeps the frame rigid under cutting pressure, which is essential for straight, accurate cuts in harder materials like metal tube and acrylic. Three frame sizes are available to match different workpiece scales and cutting requirements. Select the size based on the blade length you typically use and the depth of cut you need.
Size Selection Guide
| Model | Frame Size | Best For |
|---|---|---|
| ASB 300 | 300mm (11.8 in) nominal | Jewelry-scale work, small components, fine cutting in metal sheet and thin wood |
| ASB 400 | 400mm (15.7 in) nominal | Mid-size workpieces, wood carving blanks, acrylic sheet, and general craft cutting |
| ASB 500 | 500mm (19.7 in) nominal | Larger workpieces, deeper cuts, woodworking, and cutting thicker stock material |
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelers cutting metal sheet, copper tube, aluminum, and non-ferrous metal stock by hand | Power tool use — this is a hand saw frame designed for manual cutting only |
| Craftspeople cutting wood, bamboo, horn, amber, seal stone, and acrylic for jewelry and decorative work | Cutting hardened steel or structural ferrous metals — use an appropriate metal hacksaw blade and frame for those materials |
| DIY makers who need an adjustable-depth frame for cuts at varying distances from the workpiece edge | Users who need blades included — this listing is for the frame only. Blades must be sourced separately |
| Woodworkers and carvers who need a lightweight, portable hand saw for bench and field use | High-volume production cutting — for repetitive cuts in volume, a powered table saw or band saw is more efficient |
Technical Specifications
| Frame Material | High carbon steel |
| Frame Shape | U-shaped (bow saw) |
| Total Length Range | 195 - 300mm (7.7 - 11.8 in) adjustable |
| Throat Depth | Approx. 109mm (4.3 in) |
| Blade Spacing Adjustment | 0 - 135mm (0 - 5.3 in) |
| Weight | Approx. 300g (10.6 oz) |
| Available Sizes | ASB 300, ASB 400, ASB 500 |
| Compatible Materials | Wood, bamboo, horn, amber, seal stone, acrylic, PPR pipe, plastic, copper tube, aluminum |
Pro Tips
- Match the blade tooth count to the material — finer teeth (more TPI) for metal and acrylic, coarser teeth for wood and bamboo. Using the wrong blade type produces rough cuts and shortens blade life.
- Tension the blade firmly before cutting — a loose blade wanders off the cut line and produces curved rather than straight cuts, especially in harder materials.
- Let the blade do the work — apply light, consistent forward pressure and avoid forcing the cut. Excessive pressure bends the blade and increases the risk of breakage.
- When cutting metal tube or thin sheet, clamp the workpiece securely before starting — unsecured metal pieces vibrate during cutting and produce rough, uneven cuts.
- Rotate the blade 90 degrees in the frame for rip cuts along the grain of wood or for cuts that need to travel further than the throat depth allows in the standard orientation.
Frequently Asked Questions
Are saw blades included with the frame?
No. This listing is for the saw frame only. Saw blades are not included and must be sourced separately. Please ensure you have compatible blades for your intended material before ordering.
Which size should I choose — ASB 300, 400, or 500?
Choose ASB 300 for jewelry-scale work and small components. Choose ASB 400 for mid-size craft and woodworking tasks. Choose ASB 500 for larger workpieces and deeper cuts. If you are unsure, the ASB 400 is the most versatile general-purpose size for mixed use.
What materials can this saw cut?
The frame is compatible with wood, bamboo, horn, amber, seal stone, acrylic (plexiglass), PPR pipe, plastic, thin copper tube, and aluminum. It is not designed for cutting hardened steel or structural ferrous metals.
Can the blade be rotated for different cutting directions?
Yes. The U-shaped frame allows the blade to be rotated and repositioned for angled cuts or for rip cuts that need to travel in a different direction relative to the frame.
What is the maximum throat depth?
The throat depth is approximately 109mm (4.3 in), and the blade spacing is adjustable from 0 to 135mm (0 to 5.3 in). This determines how far from the edge of the material you can position a cut.
What if I have questions after receiving the saw?
Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days and can assist with blade compatibility and size selection questions.
What's Included
- 1 x Adjustable bow saw frame (size as selected: ASB 300, ASB 400, or ASB 500)
Support
Questions about blade compatibility, size selection, or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.


