Boring Bars with Holder Manufacturer,Supplier and Exporter
Product Code : SEL-MMTM-11810
Quick Answer: Double-ended and made in one piece, the Boring Bar with Holder has 90° and 45° square ends and is offered in seven sizes, from 3/8 in to 1-3/16 in bar diameter, each with a matching holder.
Last updated: October 2026
Key Features
- Double-ended, one-piece boring bar
- 90° and 45° square ends
- Seven sizes, bar diameter 3/8 in to 1-3/16 in
- Square tool bits from 1/8 in to 1/2 in
- Supplied with hex key and screw, without tool bits
- Shiny black finish
Technical Specifications
| Specification | Value |
|---|---|
| Size 1 | Bar 3/8 in dia. x 4-1/2 in; holder 2-1/4 in long, 1/2 in square; 1/8 in square bit |
| Size 2 | Bar 7/16 in dia. x 5-1/4 in; holder 2-1/2 in long, 1/2 in square; 3/16 in square bit |
| Size 3 | Bar 9/16 in dia. x 6-3/4 in; holder 3 in long, 5/8 in square; 1/4 in square bit |
| Size 4 | Bar 3/4 in dia. x 9-1/4 in; holder 3-3/4 in long, 7/8 in square; 5/16 in square bit |
| Size 5 | Bar 7/8 in dia. x 11-1/2 in; holder 4-1/2 in long, 1-1/4 in square; 3/8 in square bit |
| Size 6 | Bar 1-1/8 in dia. x 12-3/4 in; holder 4-1/2 in long, 1-3/8 in square; 7/16 in square bit |
| Size 7 | Bar 1-3/16 in dia. x 13-3/4 in; holder 5 in long, 1-5/8 in square; 1/2 in square bit |
About This Product
Boring enlarges or finishes a hole already made in work held on the lathe, using a single-point tool bit carried on a bar. Here each bar is double-ended, with square ends at 90° and 45° for the bit, and sits in a holder sized to match it. Bars range from 3/8 in diameter x 4-1/2 in long to 1-3/16 in x 13-3/4 in, and tool bits are bought separately. School Educational Instrument can ship the Boring Bars with Holder to Cabo Verde, Montenegro, the Republic of the Congo, Kenya, the United Arab Emirates and Liberia.
Frequently Asked Questions
Are tool bits supplied with the boring bars?
No. The bars come with a hex key and screw but without tool bits. Square bits from 1/8 in to 1/2 in are used across the seven sizes.
What sizes are available?
Seven sizes, from a 3/8 in diameter x 4-1/2 in bar with a 1/8 in square bit to a 1-3/16 in x 13-3/4 in bar with a 1/2 in square bit.
Related: Metal Manufacturing Training Machine, Parting Tool Holder, Knurling Tool Holder, Center Lathe Machine.
For a quotation on the Boring Bars with Holder, contact School Educational Instrument.
