3/8″ Pocket Hole Router Bit – 3/8″ Shank – Whiteside RU4000H (AstraHP Coated)
Whiteside 3/8″ 3 Flute Castle Pocket Hole Router Bit. Direct replacement bit for Castle pocket hole and Porter Cable pocket cutter machines. AstraHP Coated for longer bit life. AstraHP Coated Solid Carbide 3/8″ Tip Size 1″ Length of Cut 3/8″ Shank 2-1/2″ Overall Tool Length Made In USA



Category: Up-Cut CNC Bits
This Whiteside RU4000H pocket hole router bit is designed for creating clean, accurate pocket holes in woodworking projects. Featuring a 3/8-inch cutting diameter and a 3/8-inch shank, it is compatible with many pocket hole jigs and routers. The bit is coated with AstraHP, a advanced coating that helps reduce heat and friction for longer tool life and smoother cuts.
- 3/8-inch cutting diameter and 3/8-inch shank for standard pocket hole applications
- AstraHP coating enhances durability and performance
- Castle-style design for efficient material removal
- Ideal for use as a replacement bit in compatible pocket hole machines
Before you pay
Check the method and total at checkout.
When it ships
Allow for processing time as well as the journey to you.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyIf you need a refund
Keep your order number and contact the store to start.
Please contact us for the refund processing timeframe before returning an item.
View policyDelivery costs
Review the cost for your destination and chosen service.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyReturning an item
Check the return conditions before sending anything back.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy








