Mexco | SKU:
137368
Mexco 1 ¼" to ½" Female Adaptor
£67.08
Ex. VAT
£80.49
Inc. VAT
Why buy from us
- Pay in 30 days with a Trade Account. No fees.
- Trade and bulk pricing available on request
- UK stock, dispatched fast
Mexco 1 ¼" to ½" Female Adaptor is backordered and will ship as soon as it is back in stock.
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- Made in the UK
- Pay in 30 days with Klarna. No fee. Learn more
- Next Day Delivery Available
Mexco 1 ¼" to ½" Female Adaptor is backordered and will ship as soon as it is back in stock.
Why it works
A simple fix for mismatched core drill threads
Converts between thread standards
Converts a 1¼" UNC fitting to ½" BSP, so core bits, extension bars and drill fittings with different threads can be used together.
Secure spanner-tightened fit
The hex-profile body lets the adaptor be tightened securely with a standard spanner for a stable connection.
Built for professional core drilling
Machined for masonry core drilling equipment, connecting fittings with mismatched thread standards.
Overview
Mexco 1¼" to ½" Female Adaptor - Overview
The Mexco 1¼" to ½" Female Adaptor is a threaded coupler for connecting core drilling equipment with different thread fitments, converting between 1¼" UNC and ½" BSP thread standards.
1¼in
UNC thread
½in
BSP thread
| Dimensions | |
|---|---|
| UNC thread | 1¼" |
| BSP thread | ½" |
| Details | |
|---|---|
| Brand | Mexco |
| Compatible with | Diamond core drills and extension bars |
| Finish | Black-finished machined body |
Frequently asked questions
What does this adaptor convert between?
What does this adaptor convert between?
It converts a 1¼" UNC thread fitting to a ½" BSP thread fitting, letting equipment with different thread standards be connected.
What is it used for?
What is it used for?
It's used on diamond core drilling equipment to connect core bits, extension bars or drill fittings that have mismatched thread standards.
How do I tighten the adaptor?
How do I tighten the adaptor?
The body has a hex profile, so it can be tightened securely with a standard spanner.
Is it suitable for professional core drilling?
Is it suitable for professional core drilling?
Yes, it's built for professional masonry core drilling applications.
Will this fit my extension bar or core bit?
Will this fit my extension bar or core bit?
It's designed to fit thread-compatible extension bars and core bits using 1¼" UNC or ½" BSP fittings - check your equipment's thread size before ordering.

