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Model # A10CS08

Internet # 202070838

Store SKU # 172988

SpeedLoad Plus 5/8 in. High-Speed Steel Countersink

This item has been discontinued.
The Home Depot no longer carries this specific product.

$8.47 / each



Model # A10CS08

Internet # 202070838

Store SKU # 172988

Ryobi introduces the Ryobi SpeedLoad plus 5/8 in. High-Speed Steel Countersink. The bit has 5 sharpened cutting edges for a flush setting which makes it ideal for setting screws into wood, metal and plastic. To learn more about Ryobi tools go to and check out Ryobi Nation. See below for more information on this tool.

California residents: see  Proposition 65 information


Assembled Depth (in.) 
0.55 in 
Assembled Height (in.) 
4.75 in 
Assembled Width (in.) 
1.87 in 
Bit Diameter 
5/8 in 
Bit Length (in.) 
Shank Diameter 
1/4 in 
Bit Material 
High Speed Steel 
Drill Bit Type 
Drill Bit Type(s) Included 
Power Tool Product Type 
Drill & Router Bits 
Shank Style 
Tools Product Type 
Power Tool 


Rated 3.5 out of 5 by 6 reviewers.
Rated 3.0 out of 5.0 by New Countersink Countersinks seem to get lost frequently, probably due to my own lack of consistently putting them away when I have finished using them. May 6, 2015
Rated 5.0 out of 5.0 by Works well, provides a quality finish Bought this to countersink holes on 1/2" aluminum table saw fence rails. worked great, just be sure to use cutting oil while drilling so it wont overheat and bind up. December 26, 2014
Rated 4.0 out of 5.0 by Stubby countersink I like a nice, short countersink to keep it from "chattering". Standard 'hex' shank. I find that it works best at slower speed. I've used on wood, steel, aluminum, brass & copper. Holds up well. November 21, 2013
Rated 1.0 out of 5.0 by Do Not Buy ! I'm using this drill through 1" thick steel, I already drilled a pilot 1/2" hole by DeWalt 1/2" Titanium drill bit which is pretty good. Then I use this 5/8" slow sucker to extend 1/2" hole and it snap, overheated only in about 0.3" depth of 1' depth hole. When I pull out this sucker from hole, flame flickered on it with lots of smoke, and left carbon inside which I believe it's overheat will weak the strength of my steel. Poor design drill bit's round shank also slide and burned out during operation, I won't buy it anymore. June 18, 2014
Rated 4.0 out of 5.0 by Good I first purchase another bit but it was too big for my drill. I should have bought this one first. This bit is kind of short but luckily I already had an extension. September 7, 2013
Rated 4.0 out of 5.0 by Did the job at a fair price I bought this countersink bit to complete a shop cabinet project. It performed well and held an edge even during heavy use. April 8, 2014
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