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Home/DIY & Tools/Power, Garden & Hand Tools/Power Tool Accessories/Drill Bits/Twist Bits/Long Length Bits
Best Price Square COUNTERBORE, HSS, M4 102409 By RUKO
★★★★★
$27.99
Quantity
1
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About this item
- COUNTERBORE, HSS, M4 102409 By RUKO
- Manufacturer Name: RUKO
- Manufacturer Part No: 102409
Product description
Product Application To produce cuts for cylinder head bolts, hex bolts and nuts. Great for burr-and chatterless sinks in steel, cast iron, non-ferrous and light metals. Great results at low cutting speed. Grade medium for through hole Countersinking diameter 8.0 mm for M 4 Pin diameter: 4.5 mm. Shaft diameter: 5.0 mm. Overall length: 71 mm.
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Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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