Timberline 630-300 Flat Bottom Carbide Tipped Counterbore 10mm D x 11/64 Drill D x 5/16 SHK for Wood Screw Size #8-9

Brand: Timberline

SKU: #630-300

$42.80

$29.96

Save 30% ($12.84)

(You save $12.84 )

Free shipping on orders $49 and up

Order within 14h 53m 33s to ship today.

Buy Now Pay Later

Earn 90 points with this purchase!

Counterbore D In.	Counterbore D mm	Countersink Dia.	Drill Bit Dia. Inch	Replacement Drill	Shank In.	Shank mm	Wood Screw Size
0.394	10.0mm	11/64	4.4mm	630-302	5/16"	8.0mm	8-9		Timberline 630-300 Flat Bottom Carbide Tipped Counterbore 10mm D x 11/64 Drill D x 5/16 SHK for Wood Screw Size #8-9 More info

PRODUCT DETAILS

Click an item to expand and learn more

Overview

Flat Bottom Counterbores with Slow Spiral, High-Speed Steel (HSS) M2 Fully Ground Drill Bits. For use in handheld drill, drill press & CNC machine when used with CNC Spring Collet*.

CNC Countersink

Drilling countersinks with these bits on the CNC machine is a great way to save time and have your pieces look great every time!

With the adjustable depth drill bit you can adjust them for whatever size material you’re working with. They are best used with a drilling toolpath, utilizing the peck drill option at 0.25” per pass with a 0.125” retract height.

For best results run at 3,000 RPM with a 30 Inches Per Minute (IPM) plunge rate. No feed rate needs to be set with these as they only move up and down with the Z axis, not side to side. If your software doesn’t allow a 0 feed rate, you can enter 1 IPM in the feed rate as a placeholder.

*For 5/16" dia. round shank use a 7-8mm Spring Collet. For 3/8" dia. round shank use 9-10mm Spring Collet.
Reviews

Reviews
Q&A
Trusted reviews by
We're looking for stars!
Hear what other people just like you have to say about our tools.
Read Our Reviews
Questions and Answers

Questions & Answers
Have a question?
Be the first to ask something about this product.
Ask a question