Small-diameter boring tools

Seven series covering internal turning, grooving, threading, back turning and profiling in small bores. 196 standard models.

Series overview

Series	Application	Models	Overall length
MTR	Internal turning	82	50–70
MFR	Face grooving	11	50–50
MIR	Internal threading	16	50–65
MQR	Back turning	17	50–60
MGR	Internal grooving	32	50–65
MPR	Internal turning, extended reach	30	50–50
MKR	Corner radius	8	50–50

Full size tables for every series are in catalog chapter 03, Small-diameter boring tools (PDF). No prices.

All dimensions in millimetres. Minimum bore and reach vary by model; holders are quoted separately. Sizes outside these ranges are quoted to order.

Working to a minimum bore?

Send the bore diameter, the depth and the feature you are cutting. We will confirm the reach and the model.

Send a drawing Request a free sample

Ordering and delivery

Minimum order: 5 pieces per size
Lead time: Stock items ship in 3 days; custom tools 15–30 working days.
Payment: T/T. Production starts once the deposit is received.
Shipping: By express, air or sea; terms agreed with you.

Free samples — tell us the tool and size, and we will confirm the details with you before shipping.

Request a free sample

Packaging

Every tool is packed on its own: a tip cap protects the cutting edge, and each shank tool sits in its own reusable tube, sized to the shank and length and labelled for your order.
Micro tools (drills and end mills below about Φ3) go in micro tubes that hold the tool without touching the edge.
Inserts and crown drill tips are packed in slotted insert boxes, 10 per box for standard inserts.
Tubes are grouped in 5- or 10-piece boxes, then packed in export cartons sized to the order; reinforced or palletised packing for sea freight on request.

Questions about ordering

What is the minimum order?

5 pieces per size, for standard and made-to-drawing tools.

How long is the lead time?

Stock items ship in 3 days. Custom tools take 15–30 working days after the order and the drawing are confirmed, depending on the tool. Some standard sizes are in stock; we confirm stock when we quote.

How do I pay?

T/T. Production starts once the deposit is received.

How do you ship?

By express, air or sea; terms agreed with you.

Can you make a tool to my drawing?

Yes. Send a drawing, a photo of a sample or the tool you use now. We confirm the geometry and the drawing with you before production; 3D design support and OEM / ODM orders are available.

Are the tools inspected before shipment?

Yes. Tools are inspected before shipment.

What should I send for a quote?

The order code or a drawing, the workpiece material and the quantity. Custom quote checklist →