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Sherline 3021

3pc Center Drill Set

$22.00 In Stock

Center drills are used with the lathe to drill a hole in the end of stock for mounting between centers in the lathe. They are designed to drill a small diameter pilot hole followed by a 60° countersink that provides a bearing surface for the 60° point of the lathe center. Center drills are also used extensively with the milling machine to accurately start holes. The hole locations can be dialed in using the milling machine’s calibrated handwheels, then the hole is started using the center drill. The large diameter shank on the center drill holds the drill point right on center. Once the hole is started, the center drill is replaced with a drill of the desired diameter and the hole is finished. It is imperative that a cutting lubricant is used, and the center drill is backed off several times to prevent the smaller tip from twisting off.

This center drill set includes a #1, #2 and #3 double-ended high-speed steel drill. The #1 drill (P/N 30240) has a 1/8" shank, the #2 drill (P/N 30260) has a 3/16" shank, and the #3 drill (P/N 30270) has a 1/4" shank. The tip diameter of the #1 is .047", the #2 is .078" and the #3 is .109". Other smaller sizes are available upon request.

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Vendor	Sherline (new window)
Model No.	3021
Availability	In Stock(explain)
Shipping Weight	1 lbs
Size	0x0x0"
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Price	$22.00
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Sherline 3021

3pc Center Drill Set

$22.00 In Stock

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Atlas Machinery Supply Ltd. 233 Queen St W, Toronto, ON M5V 1Z4 (416) 598-3553 info@atlas-machinery.com Since 1954 Hours: Monday - Wednesday 9am - 6pm Thursday 9am - 7pm Friday - Saturday 9am - 5pm