Type and applications overview 18 - 21 ULTIMATECUT DIN 338 type FLOWSTEP®, HSSE-Co 5 22 ULTIMATECUT DIN 338 type FLOWSTEP®, HSS 23 ULTIMATECUT DIN 338 type FLOWSTEP® + machine tap M DIN 371 / 376 form B 24 ULTIMATECUT DIN 338 type FLOWSTEP® + single-cut tap M * DIN 352 HSS 24 DIN 338 type VA, HSSE-Co 8 + TiAIN 26 - 28 DIN 338 type VA, HSSE-Co 5 - inch dimensions 33 DIN 338 type N, HSS - inch dimensions 42 DIN 338 type N, HSS TiN - inch dimensions 43 DIN 338 type N, HSS-G with TiN tip coating 44 DIN 338 type N, HSS - left-hand cutting 45 DIN 338 type N, HSS-R + HSS VAP + HSSE-Co 5 with reduced shank 49 DIN 1897 type N, HSSE-Co 5 - short 54 Double end drill type KV, HSS 56 Use of the drills and cutting conditions 57 Speed table for twist drills 58 - 59

Twist drill with FLOWSTEP® tip FLOWSTEP® tip Precise centering = no slipping when positioning. Time saving due to faster drilling = more holes drilled in the same time. Power-saving drilling = more holes without a brea

3-surface shaft No slipping in the drill chuck, therefore optimum power transmission. No more retensioning in the drill chuck, making work simple and uncomplicated. black bevel The black bevel increases wear resistance and at the same time reduces cold welding at the groove edges.

14 Overview of symbols Drill types Type N Helix angle: Profile of flute: Core: Point angle: DIN standards DIN Centre drills 60° 333 shape A and R TL3000 Type TL 3000 Helix angle: Profile of flute: Core: Point angle: Point cut: Profile of flute: Core: Point angle: Point cut: Twist drills with morse taper shank wide with rounded rear edges wide with rounded rear edges very thick 130° shape U DINShort twist drills 338 with straight shank DINExtra long twist drills 1869 with straight shank Type UNI Helix angle: Profile of flute: Core: Centre angle: Point cut: Type VA Helix angle: Profile of flute:...

Point grinding and pointing according to DIN 1412 N Shape N: Helical point normal ground Application: For all normal drilling work in steel, non-ferrous metal and plastic. The point angles depend on the ease with which the materials can be cut. Advantages: Powerful main cut, resistant to impact and lateral forces. Simple manual grinding possible. Disadvantages: Broad cutting edge requires considerable pressure. Shape A: Cut chisel edge Application: For all normal drilling work using drills with a strong core, for drilling into solid materials with larger drill diameters. Advantages: Good centering...

Standard for professional work ★ ★★ Cutting-edge Premium with industry standard

This starts with the point grinds and the different helix and point angles, which have a significant influence on the precise drilling behaviour. This also includes the differently designed flute profiles, which optimise chip pick-up and removal and thus prevent the drill bit from annealing or even breaking. Or the core thickness, which plays a decisive role in the stability of each twist drill. This results in twist drills with individual class. For traditional craftsmanship, for use in industry or for tasks that require highly specialised solutions. RUKO specialists

Type and applications overview Spiral angle Point angle

Main application

Type and applications overview Spiral angle Point angle

Main application (^) Other application RIIKO 21

ULTIMATECUT twist drill DIN 338 type FLOWSTEP®, HSSE-Co 5 FLOWSTEP® tip • Perfect centering, avoiding slipping even on round surfaces such as pipe and tube. • Easy and smooth drilling process, without jamming in the material. • Extremely fast and energy-saving drilling. • Significantly longer tool life - up to 5x more holes possible. • Optimal performance in hand-held (cordless) power tool drill machines. n FLOWSTEP® tip from 0 3.00, as from a technical application point of view there is no benefit in sizes smaller than 0 3.00. Packaging: plastic tube

ULTIMATECUT twist drill DIN 338 type FLOWSTEP®, HSS FLOWSTEP® tip • Perfect centering, avoiding slipping even on round surfaces such as pipe and tube. • Easy and smooth drilling process, without jamming in the material. • Extremely fast and energy-saving drilling. • Significantly longer tool life - up to 5x more holes possible. • Optimal performance in hand-held (cordless) power tool drill machines. D FLOWSTEP® tip from 0 3.00, as from a technical application point of view there is no benefit in sizes smaller than 0 3.00. Packaging: plastic tube

ULTIMATECUT® ULTIMATECUT twist drill DIN 338 type FLOWSTEP® + machine tap M DIN 371 / 376 form B 7 ULTIMATECUT twist drills DIN 338 type FLOWSTEP® 0 2.5 | 3.3 | 4.2 | 5.0 | 6.8 | 8.5 | 10.2 mm + 7 Machine taps M DIN 371 / 376 Form B with peel cut M 3 | M 4 | M 5 | M 6 | M 8 | M 10 | M 12 7 ULTIMATECUT twist drills DIN 338 type FLOWSTEP® 0 2.5 | 3.3 | 4.2 | 5.0 | 6.8 | 8.5 | 10.2 mm + 7 Machine taps M DIN 371 / 376 Form B with peel cut M 3 | M 4 | M 5 | M 6 | M 8 | M 10 | M 12 mu ULTIMATECUT twist drill DIN 338 type FLOWSTEP® + single-cut tap M « DIN 352 HSS 7 ULTIMATECUT twist drills DIN 338...

lL Twist drill DIN 338 type VA, HSSE-Co 8 HSSE Powerful special drill that should ideally be used for titanium base alloys as well as stainless, acid-resistant and heat-resistant austenitic steels. It is also suitable for high strength steels with low ductility. Under certain conditions, these drills can be used for special alloys such as hastelloy, inconel and nimonic etc Packaging: plastic tube

Twist drill set DIN 338 type VA Ø 1.0 mm to 13.0 mm x 0.5 mm increasing Coolants and lubricants RUKO coolants and lubricants have an excellent release and cooling effect. They produce a high surface quality and increase tool life even with hard and brittle materials. You will find the coolants and lubricants to match our range coolants and lubricants in our chapter 14, page 303. Twist drill set DIN 338 type VA Ø 1.0 mm to 10.0 mm x 0.5 mm increasing