Name: HSS Tapered Countersink Bit Set 4-Piece 1/4 in Hex Shank
Brand: IRWIN
SKU: 878-6998
Availability: InStock

HSS Tapered Countersink Bit Set 4-Piece 1/4 in Hex Shank

Item No 878-6998

Manufacturer IRWIN

Mfr. Item No 1882793

$40.98

Min Order 6

Unit of Measure EA

Ships in 4-5 days

Description
Additional Details
Purchase History
General Ledger Coding

Some product details generated with AI assistance — verify specs before ordering.

The IRWIN 1882793 is a professional-grade 4-piece tapered countersink bit set designed for precision wood-boring applications. Each bit features a high-speed steel construction with a black oxide finish for enhanced durability and corrosion resistance. The set includes #6, #8, and #10 bits equipped with adjustable four-cutter counterbores and widened flutes to ensure fast chip clearance and clean pilot holes. A 1/4-inch quick-change hex shank provides a secure fit in standard chucks and impact drivers, making it an essential tool for high-volume construction and cabinetry projects.

Tapered drill with widened flutes for drilling fast, clean pilot holes. Adjustable four-cutter counterbore cuts and clears chips quicker for fast, smooth counter sinking. Counterbore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth. 1/4 in quick change shank reduces slipping in standard chucks and is compatible with all 1/4 in quick change chucks, including impact drills. Set includes (1) small depth stop, (1) #6, (1) #8 and (1)#10 bit.

Packaging/Shipping Size and Weight: Length: 0.63" | Width: 3" | Height: 8" | Weight: 0.264 lbs

Product Details
Brand:	IRWIN
Product Type:	Countersink Bit Set
Material:	High Speed Steel (HSS)
Shank Type:	1/4 in Hex Quick-Change
Pieces:	4-Piece
Bit Sizes Included:	#6, #8, #10
Includes:	Small depth stop
Cutter Style:	Adjustable four-cutter counterbore
Application:	Wood, Plastic, Machinable Metals
Compatibility:	Standard chucks and 1/4 in quick-change chucks (including impact drills)
Color:	Black/Steel
Finish:	Black Oxide
Size:	4-Piece Set (#6, #8, #10)
Number of Pieces:	4
Included Sizes:	#6, #8, #10
Point Angle:	82 Degrees

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General Ledger Coding

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General Ledger Coding makes accounting easier by providing you with a calculated total of purchases based on your General Ledger Codes.

In addition to traditional General Ledger Summary provided at time of invoice, we can also provide quotes and order acknowledgements with General Ledger Coding as well. We also give you the ability to change a GL Code for one or all items for renovation projects that may utilize a single GL Code. We can also code any of our "extended inventory" items with your General Ledger Code at the time of quote, order confirmation and invoicing as well. We can code our item numbers directly to your GL Codes should our item categories not align directly with your GL Code Categories.

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