Premium Quality HSS M2 spiral Twist Step Drill Bit Tin-Coated Tri-Flat Shank for Metal Steel Stainless Steel Alloyed Unalloyed Non-Ferrous Metal

• Customized: Customized
• Standard: DIN
• Length: 61mm to 120mm
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Model NO.: 928
• HSS Steel Type: HSS M2
• Flute Type: Twist Spiral
• Rotation Direction: Right Hand
• Surface Treatment: Tin-Coated
• Max. Cutting Thickness: 3mm to 4.5mm
• Marking: Laser Marking
• Precision Level of Holes: H8
• Shank Type: Tri-Flat Shank
• Transport Package: Box, PVC Bag, Blister, Sandwich Blister, Tube
• Specification: 4mm to 60mm diameter
• Trademark: OEM, HTT
• Origin: China
• HS Code: 8207509000
• Production Capacity: 4800000PCS/Year

Product Description

* HSS Step Drill Bit, Twist Spiral Flute with size laser marked, Tri-flat shank, HSS M2 steel Tin-coated finished.

*Perfect for making holes in sheet metal and thin metal. Generous lubrication ensures the best drilling result.

* High-Quality HSS step drills for professional use. Precision ground, multi-flute cutting edges produce accurate burr-free holes.

* Also features a self-centering point which eliminates the need to pre-punch.

* Used to create accurate holes or enlarge holes in metals up to 4.5mm thickness.



*Other special sizes are also available on the customers' special request.
 

Item Number	Diameter Combination	Step QTY.	Overall Length(mm)	Shank Diameter(mm)
928.1230412051	4,6,8,10,12	5	65	10
928.1230412091	4,5,6,7,8,9,10,11,12	9	65	10
928.1230420091	4,6,8,10,12,14,16,18,20	9	75	10
928.1230422101	4,6,8,10,12,14,16,18,20,22	10	80	10
928.1230430141	4,6,8,10,12,14,16,18,20,22,24,26,28,30	14	100	13
928.1230432151	4,6,8,10,12,14,16,18,20,22,24,26,28,30,32	15	105	13
928.1230439141	4,6,8,10,12,15,18,21,24,27,30,33,36,39	14	107	13
928.1230535131	5,7.5,10,13,16,19,21,23,26,29,31,33,35	13	100	13
928.1230538141	5,7.5,10,13,16,19,21,23,26,29,31,33,35,38	14	95	13
928.1230618071	6,8,10,12,14,16,18	7	67	10
928.1230620081	6,8,10,12,14,16,18,20	8	71	10
928.1230624101	6,8,10,12,14,16,18,20,22,24	10	80	10
928.1230625071	6,9,12,16,20,22.5,25	7	65	12
928.1230630131	6,8,10,12,14,16,18,20,22,24,26,28,30	13	98	13
928.1230630101	6,9,12.7,15.2,18.6,20.4,22.5,25.5,28.3,30.5	10	100	13
928.1230632081	6,10,14,18,22,26,29,32	8	75	13
928.1230632091	6,9,12,16,20,22.5,25,28.5,32	9	76	13
928.1230637121	6,9,12.5,15.2,18.6,20.4,22.5,26,28.3,30.5,34,37	12	100	13
928.1230638121	6,9,13,16,19,21,23,26,29,32,35,38	12	100	13
928.1230640161	6,11,17,23,29,30,31,32,33,34,35,36,37,38,39,40	16	105	13
928.1230936101	9,12,15,18,21,24,27,30,33,36	10	86	13
928.1231020111	10,11,12,13,14,15,16,17,18,19,20	11	88	10
928.1231220091	12,13,14,15,16,17,18,19,20	9	76	10
928.1231338101	13,16,19,21,23,26,29,32,35,38	10	112	13
928.1231424061	14,16,18,20,22,24	6	67	13
928.1231425071	14,16,18,20,22,24,25	7	71	13
928.1232030111	20,21,22,23,24,25,26,27,28,29,30	11	88	13
928.1232034081	20,22,24,26,28,30,32,34	8	75	13
928.1233040111	30,31,32,33,34,35,36,37,38,39,40	11	98	13
928.1234050111	40,41,42,43,44,45,46,47,48,49,50	11	107	13
928.1235060111	50,51,52,53,54,55,56,57,58,59,60	11	120	13