HSS Step Drill Straight Flute Bright Finished Tri Flat Shank for Metal, Steel, Non-Ferrous Sheets and Board Drilling

• Customized: Customized
• Standard: DIN
• Length: 65mm to 125mm
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Wood Drilling, Metal Drilling
• Model NO.: 925
• HSS Steel Type: M2
• Flat Shank: Tri Flat
• Surface Treatment: Bright Finish
• Max. Cutting Thickness: 3mm to 4.5mm
• Precision Level of Holes: H8
• Transport Package: Box, PVC Bag, Blister, Sandwich Blister, Tube
• Specification: 4mm to 60mm diameter
• Trademark: OEM, HTT
• Origin: China
• HS Code: 8207509000
• Production Capacity: 1000000PCS/Year

Product Description

* HSS Step Drill Bit, Straight Flute with size laser marked, Tri-flat shank, HSS M2 steel bright 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)
925.1230412051	4,6,8,10,12	5	65	10
925.1230412091	4,5,6,7,8,9,10,11,12	9	65	10
925.1230420091	4,6,8,10,12,14,16,18,20	9	75	10
925.1230422101	4,6,8,10,12,14,16,18,20,22	10	80	10
925.1230430141	4,6,8,10,12,14,16,18,20,22,24,26,28,30	14	100	13
925.1230432151	4,6,8,10,12,14,16,18,20,22,24,26,28,30,32	15	105	13
925.1230439141	4,6,8,10,12,15,18,21,24,27,30,33,36,39	14	107	13
925.1230535131	5,7.5,10,13,16,19,21,23,26,29,31,33,35	13	100	13
925.1230538141	5,7.5,10,13,16,19,21,23,26,29,31,33,35,38	14	95	13
925.1230618071	6,8,10,12,14,16,18	7	67	10
925.1230620081	6,8,10,12,14,16,18,20	8	71	10
925.1230624101	6,8,10,12,14,16,18,20,22,24	10	80	10
925.1230625071	6,9,12,16,20,22.5,25	7	65	12
925.1230630131	6,8,10,12,14,16,18,20,22,24,26,28,30	13	98	13
925.1230630101	6,9,12.7,15.2,18.6,20.4,22.5,25.5,28.3,30.5	10	100	13
925.1230632081	6,10,14,18,22,26,29,32	8	75	13
925.1230632091	6,9,12,16,20,22.5,25,28.5,32	9	76	13
925.1230637121	6,9,12.5,15.2,18.6,20.4,22.5,26,28.3,30.5,34,37	12	100	13
925.1230638121	6,9,13,16,19,21,23,26,29,32,35,38	12	100	13
925.1230640161	6,11,17,23,29,30,31,32,33,34,35,36,37,38,39,40	16	105	13
925.1230936101	9,12,15,18,21,24,27,30,33,36	10	86	13
925.1231020111	10,11,12,13,14,15,16,17,18,19,20	11	88	10
925.1231220091	12,13,14,15,16,17,18,19,20	9	76	10
925.1231338101	13,16,19,21,23,26,29,32,35,38	10	112	13
925.1231424061	14,16,18,20,22,24	6	67	13
925.1231425071	14,16,18,20,22,24,25	7	71	13
925.1232030111	20,21,22,23,24,25,26,27,28,29,30	11	88	13
925.1232034081	20,22,24,26,28,30,32,34	8	75	13
925.1233040111	30,31,32,33,34,35,36,37,38,39,40	11	98	13
925.1234050111	40,41,42,43,44,45,46,47,48,49,50	11	107	13
925.1235060111	50,51,52,53,54,55,56,57,58,59,60	11	120	13