Spiral Flute Tap #12-28 HSS-E MPN:2923801

UN fine (UNF) taps have more threads per inch than UN coarse (UNC) taps. Compared to UNC taps, UNF taps perform better in threading applications on thin-walled workpieces and hard materials. Fine threads provide more tensile strength and shear strength than coarse threads. The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals.

Technical Specifications

• Item Spiral Flute Tap
• Thread Size #12-28
• Thread Standard UNF
• Tap Material High Speed Steel
• Tap Finish Black Oxide
• Thread Length 5/16 in
• Overall Length 2 11/32 in
• 75% Thread Drill Size 4.60
• Thread Limit H3
• Thread Direction Right Hand
• Number of Flutes 3
• Tap Shank Standard ANSI
• Primary Material Application Steel
• 55% Thread Drill Size #12
• 65% Thread Drill Size #13
• Coolant Fed Non-Coolant Through
• Drill Bit Size 0.1789 in, 0.1812 in, 0.1835 in, 0.1858 in, 0.1882 in
• Extended Neck Yes
• Features The Original in Do It All in Spiral Flute Tap, Good for All Materials
• Helix Angle 45 Degrees
• Material Grade - Machining 290, Vanadium High Speed Steel
• Measurement System Pipe
• Primary Material Application ISO Code P
• Secondary Material Application Cast Iron, Hardened Steel, Stainless Steel
• Secondary Material Application ISO Code H, K, M, P
• Shank Length 1 13/32 in
• Shank Type - Machining Straight
• Square Size 0.1640 in
• Tap Chamfer Modified Bottom
• Thread Limit / Class of Fit H3
• Threads per Inch 28
• Series 290
• Shank Dia. 7/32 in
• Standards ANSI
• Tap Grouping Individual
• Tap Style Spiral Flute
• Tap Thread Size #12-28

Manufacturer Details

• Manufacturer: Osg
• Condensed Mfg Number: 2923801
• MPN: 2923801

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: BR
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8207400000
• GDS Category Name: Spiral Flute Taps
• GDS Family Name: Threading
• GDS Segment Name: Machining
• UNSPSC: 23153305
• UNSPSC Class ID: 33
• UNSPSC Commodity Name: Cutting tools
• UNSPSC Commodity ID: 05
• UNSPSC Commodity Name: Taps or dies
• UNSPSC Family ID: 15
• UNSPSC Family Name: Industrial process machinery and equipment and supplies
• UNSPSC Segment ID: 23
• UNSPSC Segment Name: Industrial Manufacturing and Processing Machinery and Accessories

Shipping Details

• Not For Sale In: HI AK PR