				Shank					Each
Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric
Black-and-Gold Oxide High-Speed Steel
3.8 mm	0.1496"	76mm	44.5mm	Round	3.8mm	Split	NAS907 Type B	Steel, Iron, Stainless Steel	000000000	00000

Cobalt Steel Drill Bits

Uncoated

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank					Each
Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric
Uncoated Cobalt Steel
3.8 mm	0.1496"	75mm	35.4mm	Round	3.8mm	Split	NAS907 Type J	Steel, Hardened Steel, Iron, Stainless Steel, Nickel	00000000	00000

High-Speed Steel Left-Hand Drill Bits

Black Oxide

Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws. These bits are jobbers' length and have the rigidity and length required for most applications.

Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.

				Shank
Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On	Specifications Met		Each
Metric
Black-Oxide High-Speed Steel
3.8 mm	0.1496"	75mm	15.2mm	Round	3.8mm	Standard	Steel, Iron, Stainless Steel	DIN 338	000000000	00000