Robert Charles | Authorised UK Distributor
Robert Charles Piloted Microstop Countersinks

3 Flute - Integral Pilot - Threaded Shank

The Robert Charles Piloted Microstop Countersink features a precision 3-flute cutting design with an integral pilot for accurate hole alignment and consistent countersinking. Designed for use with microstop cages, the threaded shank provides secure fitment and reliable depth control. Manufactured to tight tolerances, the pilot diameter is held to −0.0005" to −0.0015", making it ideal for high-accuracy aerospace, automotive, and precision engineering applications.

Robert Charles Logo

Starting from
£33.18
inc. VAT
In this range
6
products
In stock now
0
ready to dispatch
Browse all 6 products

Click any SKU to view full product details, specifications and datasheets.

Product SKU Pilot Diameter Cutter Diameter Inclusive Angle Thread Decimal Equivalent Price Stock Order
SUNF3/32-100-1/2 3/32 1/2 100 1/4-28 . 0938 £33.18 2-3 days
SUNF1/8-100-1/2 1/8 1/2 100 1/4-28 . 1250 £33.18 2-3 days
SUNF5/32-100-1/2 5/32 1/2 100 1/4-28 . 1563 £33.18 2-3 days
SUNF3/16-100-1/2 3/16 1/2 100 1/4-28 . 1875 £33.18 2-3 days
SUNF7/32-100-1/2 7/32 1/2 100 1/4-28 . 2188 £33.18 2-3 days
SUNF1/4-100-1/2 1/4 1/2 100 1/4-28 . 2500 £33.18 2-3 days
Service & Support

Built around the way engineers work

Fast dispatch, clear delivery options and a friendly technical team on the end of the phone.

Dispatch Hours

Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).

  • Mon – Thurs8:00 – 17:00
  • Friday8:00 – 16:30
  • Sat & SunClosed

UK Delivery

FREE next day delivery on mainland UK orders over £50 ex VAT
ServiceCost
Royal Mail Tracked 24£5.90
DPD Standard Next Day£8.00
Royal Mail Special Delivery by 1pm£12.50
DPD Saturday Delivery£25.00

Saturday delivery available on orders placed before 4pm Friday. T&Cs and geographical exclusions apply (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands & others) — see our delivery page for full details.

Need Technical Help?

Our specialist team can advise on tooling choice, specifications and compatibility.

01732 887334 info@protool-ltd.co.uk
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30